How We Score
Every listing gets a composite score from 0 to 100, calculated entirely from financial and vehicle data — no AI opinion involved. The score weights eight dimensions that matter most when buying a used EV in Singapore: how fast it depreciates, how much it costs to run, how easy it is to resell, and more. The AI verdict then explains what the score means in plain English.
The 8 Dimensions
| Dimension | Weight | What It Measures |
|---|---|---|
| Depreciation & Equity | 20% | Annual depreciation based on projected resale value at your holding period. Lower depreciation = higher score. |
| Total Cost of Ownership | 10% | Annual depreciation + running costs (insurance, electricity, maintenance, road tax). The full picture of what you'll spend per year. |
| Resale Liquidity | 20% | How easy is this car to sell? Based on brand popularity, service network availability, and COE category demand. |
| Battery Risk | 15% | Warranty remaining (years and km), battery chemistry (LFP is safer than NMC), and current mileage relative to warranty limits. |
| Tech Obsolescence | 15% | OTA update capability, ADAS level, facelift/refresh status, and DC fast-charge speed. Newer tech holds value better. |
| Rebate Alpha | 5% | How much EV rebate was captured at registration vs current rebate levels. Higher rebate capture = better value locked in. |
| Financing Fit | 5% | How well the monthly payment fits within the configured budget target. |
| Exit Optionality | 10% | Blends viable exit ratio with equity quality. More exit windows with stronger equity = higher score. |
Score Ratings & Verdicts
80+
Excellent
STRONG BUY
65–79
Good
GOOD BET
50–64
Average
MIXED BAG
35–49
Below Average
REJECT
<35
Poor
REJECT
Worked Example
Take a 2024 Tesla Model 3 Highland listed at $143,000 with 15,000 km:
Depreciation (20%)
72
Total Cost (10%)
68
Liquidity (20%)
85
Battery (15%)
78
Tech (15%)
80
Rebate (5%)
60
Financing (5%)
55
Exit (10%)
70
75
Good
Verdict: GOOD BET — strong liquidity and tech, but monthly payment stretches the budget.
What's Not in the Score
- Condition & history — We can't see paint thickness, accident history, or real battery health. Always inspect in person.
- Dealer reputation — Some dealers are better than others. Check reviews independently.
- Personal preferences — Ride comfort, boot space, brand loyalty — these are yours to weigh.
- Future policy changes — COE quotas, EV rebate changes, and road tax adjustments can shift the math.
The score is a starting point, not the final answer. Always verify independently before making a purchase decision.