[ USER GUIDE ]

Get the most out of your car buying engine

Everything you need to know to find your perfect vehicle — in under 5 minutes. Fully updated for v3.0.

76
Vehicles
5
Scoring Dims
8
Provinces
2 MIN
To Results
[ 01 ]

Getting Started

iNo account needed
The engine runs entirely in your browser. Your answers are never stored on a server unless you explicitly submit the trade-in or dealer enquiry forms. Simply open the app, answer 8 quick questions, and get your personalised results.
01Land & Launch
The landing page has a single button: "Find My Best Car →". Click it to begin the onboarding wizard.
The headline mentions "$8,000–$15,000 overpay" — a real Canadian average from choosing the wrong vehicle. The engine is built specifically to close that gap.
02Complete the 8-Step Wizard
One question per screen — sliders and tap-to-select cards, no text fields. The progress bar at the top shows how far along you are. Tap Back anytime to revise a previous answer.
Each question has a subtitle explaining exactly why it matters to the calculation — read them, they contain real insight into how your answer moves the scoring.
03Watch the Engine Work
The analysis screen runs for a few seconds while it scans all 76 vehicles, computes TCO, and scores reliability against your profile — this is real computation, not decoration.
04Review Your Decision Report
Results arrive as a Decision Report — a Hero Card for your top match with a TCO stacked-bar breakdown, a side-by-side comparison of the top 3, and three tabs: My Results, EV vs Hybrid, and Used vs New.
[ 02 ]

Understanding Each Input

The 8 questions you answer directly shape the scoring weights and filter logic. Here's what each one does under the hood.

$Budget
Your budget sets a hard ceiling — vehicles priced above 115% of your stated budget are excluded. There's also a tiered budget floor that scales up with your budget, so a $150K budget won't surface a $51K vehicle as your "top pick" just because it has the lowest running cost. The floor rises from 0% (under $30K) up to 50% of budget at $120K+.
If you're open to used vehicles, set your budget lower. The dataset includes six 2022 used models that often beat newer alternatives on value.
PProvince
Province affects three live calculations: fuel price, insurance multiplier, and EV incentive — applied to every vehicle's 5-year TCO.
BC
$1.85/L fuel
$4,000 EV incentive
AB
$1.45/L fuel
No EV incentive
ON
$1.60/L fuel
$5,000 EV incentive
QC
$1.65/L fuel
$7,000 EV incentive
MB
$1.50/L fuel
$2,500 EV incentive
SK
$1.48/L fuel
No EV incentive
NS
$1.72/L fuel
$3,000 EV incentive
OTHER
$1.60/L fuel
$2,000 EV incentive
QC has the highest EV incentive in Canada ($7,000). If you're in QC, an EV's effective purchase price drops significantly — this shows up clearly in your TCO and in the EV vs Hybrid breakeven chart.
KMAnnual KM & Driving Type
Annual KM is the biggest variable in fuel cost:
Fuel Cost = (Annual KM × Consumption / 100) × Fuel Price × Years
Driving type affects the Fit Score: city drivers benefit from EVs and hybrids (regenerative braking), highway drivers benefit from lower fuel consumption per km on gas engines. Above 25,000 km/year, the engine automatically increases the weight of cost efficiency.
Not sure of your exact KM? Check your car insurance renewal — it asks this annually. Or divide your last odometer reading by years owned.
Cold Climate
Answering Yes increases the Climate Fit score for AWD-equipped vehicles and penalises vehicles without AWD — except for Sports/Performance vehicles, which get a reduced penalty since RWD sports cars are a known, intentional choice. In the EV vs Hybrid tab, it also triggers a cold-weather warning about EV range loss (20–40% in winter) and home charger costs.
If you're in MB, SK, AB, or northern ON/QC — always select Yes. The AWD boost is substantial and reflects real-world winter driving needs.
Body Type
Choose from Sedan, SUV/Crossover, Truck, Sports/Performance, or No Preference. Sports/Performance covers the Corvette, Mustang GT, Subaru WRX, Toyota GR86, Porsche 911, and BMW M4 — vehicles scored for driving enjoyment, not just cost efficiency.
Priority
Priority shifts the scoring weights dynamically:
PriorityCostReliabilityFitRiskResale
Balanced30%25%20%15%10%
Cost First40%+20%15%15%5%
Reliability25%35%+15%15%10%
Comfort25%25%30%+10%5%
Try running the engine twice — once on Balanced and once on your real priority. Compare the results. The difference often reveals which vehicles are genuinely versatile across every dimension.
YROwnership Years
Multiplies every recurring cost (fuel, insurance, maintenance) and determines how far out resale value is calculated. A 3-year horizon favours low-depreciation vehicles. A 10-year horizon rewards low-maintenance vehicles like Toyota and Lexus.
If you're leasing, use 3 years. If you're buying to keep, use 7–10. The difference in TCO rankings between 3yr and 10yr ownership can be dramatic.
[ 03 ]

Reading Your Results

HERO CARD
Your Top Pick
The largest card at the top is your #1 match. Shows confidence level (High/Medium/Fair), insight highlights, a TCO stacked-bar showing fuel/maintenance/insurance/depreciation as proportions, and a full 5-year cost breakdown by category.
FINANCE
Financing Calculator
Expand "Estimate monthly payment" on the Hero Card to see bi-weekly and monthly estimates, adjustable by down payment (10–50%), interest rate (4.99–8.99%), and term (3–8 years).
COMPARE
Comparison Table
Top 3 vehicles side-by-side: score, price, 5yr TCO, fuel cost, reliability index, AWD. A narrative explains why #1 beats #2 in plain English. Duplicate models (e.g. two RAV4 trims) are automatically deduplicated so you see genuinely different vehicles.
WHAT-IF
What-If Controls
Sliders for budget and annual KM, plus dropdowns for body type and priority. Hit "Update Results" to re-run the full engine instantly — no need to go back through the wizard.
METHOD
Methodology Panel
At the bottom of results, "How this score works" shows your active weight percentages — exactly which dimensions the engine is prioritising for your specific profile.
MORE
More Matches
Tap "Show All" to reveal vehicles ranked #4 through #10. Sometimes a budget or body-type tweak bumps one of these into your top 3.
Confidence levels explained
HIGH (score ≥ 80) — fits your profile very well across all dimensions. MEDIUM (65–79) — strong match with one or two trade-offs. FAIR (<65) — made the cut on budget/body type, but other factors are less aligned.
[ 04 ]

How the Score is Calculated

Every vehicle receives a score from 0–100 based on five weighted dimensions.

[ SAMPLE — 2026 TOYOTA RAV4 HYBRID ] 88.7
Cost
86
Reliability
88
Fit
84
Risk
89
Resale
88
Cost EfficiencyDEFAULT 30% · HIGH-MILEAGE +8%
Derived from 5-Year Total Cost of Ownership: purchase price + fuel + insurance + maintenance − resale value. Normalised against the eligible peer set within your budget tier — not the entire dataset — so ultra-cheap vehicles can't skew the scale for luxury budgets.
ReliabilityDEFAULT 25% · PEACE-OF-MIND +10%
Weighted composite: 50% manufacturer reliability index, 30% repair frequency proxy, 20% recall score. Lexus and Toyota typically score 88–93 here; German luxury brands (Mercedes, BMW, Audi) score 69–72, reflecting real Consumer Reports and JD Power data.
Fit for YouDEFAULT 20% · COMFORT +10%
Personal alignment across Usage Fit, Climate Fit (AWD in cold weather, reduced penalty for sports cars), Body Match, Feature Match, and a Budget Alignment curve that steepens sharply above $80K budgets — so a cheap car can't out-score a properly-matched premium vehicle just on raw TCO.
Risk ScoreDEFAULT 15%
Inverted risk index — penalises high reliability variance, poor recall history, and low technology maturity. 100 means very low risk of unexpected problems. Newer EVs and the Cybertruck score lower here due to shorter track records and recall history.
Resale ValueDEFAULT 10%
70% depreciation resistance, 30% market demand index. Toyota Tacoma, Land Cruiser, and Lexus models score highest. The Porsche 911 (28% 5yr depreciation) is the standout in the sports/luxury segment; the Cybertruck (48% depreciation) scores lowest in the dataset.
[ 05 ]

The Three Result Tabs

01My Results
Your ranked list, Hero Card, comparison table, What-If controls, and the Trade-In Estimator and Dealer contact options via Next Steps.
02EV vs Hybrid
Up to 4 EV and 4 Hybrid candidates surfaced within your budget. Swap between them with dropdown pickers — the comparison updates instantly. A 10-year cumulative cost chart marks the breakeven point where the EV becomes economical. An 8-dimension scorecard compares them head-to-head, and an AI Verdict button sends the numbers to Claude for a 3-paragraph plain-English recommendation.
CO₂ savings use Canada's average grid emission factor (0.13 kg/kWh for EVs) vs 2.31 kg/L gasoline combustion — a genuine 5-year estimate based on your actual annual KM.
03Used vs New
Side-by-side comparison across 5 vehicle pairs (Corolla, Civic, RAV4, Rogue, F-150) — a 2022 used model vs its 2026 new equivalent. Shows the verdict ("Used wins" / "New wins" / "Too close to call"), a $3,500 warranty-value credit applied to the new option, and the exact 5-year savings gap.
$Trade-In Estimator
Accessible from Next Steps on the results screen. Enter your current vehicle's make, year, kilometres driven, and condition — get an estimate based on Canadian Black Book depreciation curves, with Private Sale, Estimate, and Dealer Offer values. Hit "Apply to Budget" and the engine instantly re-runs with your effective budget increased by the trade-in value.
[ 06 ]

Tips to Get the Most Out of It

✓ Do This
  • Run the engine at least twice with different priorities to see how rankings shift
  • Use the What-If sliders to test ±$10K budget sensitivity
  • Try both "Any body type" and a specific type to see what you're giving up
  • Check the Methodology panel to confirm weights match your actual priorities
  • Use the EV vs Hybrid tab even if you're not sure — the breakeven chart is often surprising
  • Apply your trade-in value before judging what's "affordable"
✗ Avoid This
  • Don't set budget unrealistically low — you'll miss vehicles that save you money long-term
  • Don't ignore the Score Breakdown — a high final score can hide a low Fit score
  • Don't treat the score as a buying decision alone — use it as a shortlist
  • Don't skip the province selection — it materially affects EV economics
  • Don't assume the top-scoring EV is best if you lack home charging
  • Don't overlook "More Matches" — #4 or #5 often suits specific needs better
[ 07 ]

Frequently Asked Questions

Are the vehicle prices accurate?
Yes — MSRP values were corrected against a real June 2026 Canadian dealer pricing spreadsheet. They're used for TCO modelling, not as guaranteed dealer quotes. Always verify actual transaction price — dealer markups, trim packages, and financing terms vary.
Why doesn't my favourite car appear in the results?
Either the vehicle's MSRP exceeds 115% of your stated budget, it falls below the tiered budget floor (which rises with budget size), or your body type filter excludes it. Try increasing budget by $10–15K or switching to "No Preference."
Is Lexus really worth the price premium?
In the engine's data, Lexus models carry a reliability index of 88–92/100 and depreciation rates of 26–29% over 5 years — among the best in the dataset. For $55K+ budgets weighting reliability and resale heavily, Lexus frequently appears in the top 3.
What about German luxury brands like Mercedes, BMW, and Audi?
They're in the dataset (GLE, E-Class, X5, 5 Series, Q7) with honest reliability scores of 69–72/100 — lower than Lexus, consistent with real Consumer Reports and JD Power rankings. They score well on features and comfort but rank behind Genesis (82/100) and Porsche (74/100) on reliability at similar price points.
How is the EV incentive applied?
The provincial EV incentive is subtracted from purchase price before TCO is calculated. An EV listed at $52,000 in QC has an effective purchase price of $45,000 ($7,000 incentive). Federal incentives may also apply — check Transport Canada for current eligibility.
What does "deterministic" mean on the app?
The scoring engine produces identical results every time for the same inputs — no randomness, no A/B weighting. The only non-deterministic element is the AI explanation text (via Claude), which varies slightly each generation.
Can I use this for used vehicle decisions?
Yes — the dataset includes 6 used 2022 models (Corolla, Civic, RAV4, Rogue, F-150, Lexus UX 300h) plus a dedicated Used vs New tab comparing each against its 2026 equivalent.
Does the app store my data?
Your wizard profile inputs stay in browser memory and disappear when you close the tab. Optional forms — email capture, trade-in application, dealer enquiry — submit via Netlify Forms only if you choose to fill them out. AI verdict calls to Anthropic's API send only vehicle names and numeric scores, never personal information.
What's the cheapest way to see EV options?
The cheapest EVs in the dataset start around $46,000 (Chevrolet Equinox EV). If your budget is set below ~$40,000, the 115% buffer won't reach that floor and no EVs will qualify — increase your budget or check "No Preference" on body type.
Is there a version for dealerships?
Yes — the Dealer White-Label program lets dealerships brand the entire tool with their name, city, phone, and accent colour via a custom URL. Customer enquiries route directly to the dealership instead of the generic email capture. See buyingcar.online/dealer.html for pricing.
[ REF ]

Brands in the Dataset

ToyotaHondaTesla HyundaiMazdaSubaru FordKiaChevrolet GMCRAMNissan MitsubishiLexusMercedes-Benz BMWAudiPorsche GenesisVolvoCadillac Lincoln Infiniti