Car A
Mercedes-Benz SL 500 (R231)
A two-seat luxury performance car with a 455 hp V8 and 0–100 km/h in 4.6 s that favors long-distance comfort. Best for premium road trips where power matters more than passenger space.
Mercedes-Benz SL 500 (R231)
Convertible · Gasoline
vs
BMW Z4 M40i
Convertible · Gasoline
Car B
BMW Z4 M40i
Two-seat roadster that delivers strong performance and a premium feel, with 340 hp and 0–100 km/h in 4.5 s. Efficient for its class at 7 L/100 km, but practicality is limited.
Why compared
same body typesame powertrainsame ranking profilesame seatssecondary usage matchstrong ranking match
Usage fit
Family
37
/
34
City
15
/
38
Budget / value
30
/
53
Road trip
52
/
39
Performance
43
/
37
Cargo
11
/
7
Practical
25
/
26
Premium
76
/
55
Winter
30
/
26
Scores out of 100. Blue = Mercedes-Benz SL 500 (R231) · Orange = BMW Z4 M40i
Specs side-by-side
Spec
Mercedes-Benz SL 500 (R231)
BMW Z4 M40i
Values are representative — confirm for your market and trim.
Pros & cons
Mercedes-Benz SL 500 (R231)
- Strong V8 performance with 455 hp and 700 Nm
- Quick 0–100 km/h in 4.6 s for confident passing
- Two-seat layout focused on premium comfort for long drives
- 350 L trunk supports weekend or road‑trip packing
- Only two seats; not family‑friendly
- Less suited to stop‑and‑go city driving
- Limited cargo flexibility despite 350 L capacity
- High purchase price and V8 running costs
BMW Z4 M40i
- Serious pace and power: 340 hp, 500 Nm, 0–100 km/h in 4.5 s
- Efficient for its class at a combined 7 L/100 km
- Premium roadster character suits city driving and relaxed road trips
- 281‑liter trunk accommodates weekend luggage for two
- Only two seats; not a family or carpool solution
- Modest cargo capacity; weak fit for cargo-heavy use
- Premium pricing at 61,000
- Gasoline-only powertrain with no electrified option
Verdict
Pick Mercedes-Benz SL 500 (R231) if…
Efficiency & everyday ease
Mercedes-Benz SL 500 (R231) is the choice if fuel economy and city-friendly driving are your priority.
Pick BMW Z4 M40i if…
Performance & capability
BMW Z4 M40i is the choice if you want more power, speed, or all-weather capability.