Car A
BMW 840i
A premium coupe that blends 340 hp pace with usable four‑seat, 440 L practicality. Best for drivers who value performance and road‑trip versatility over urban convenience.
BMW 840i
Coupe · Gasoline
vs
Mercedes-Benz CLS 520
Coupe · Gasoline
Car B
Mercedes-Benz CLS 520
The Mercedes-Benz CLS 520 is a premium 5-seater that blends strong performance (0–100 km/h in 5.0 s) with a useful 520‑liter trunk for road trips and growing families. Less ideal for city-focused efficiency due to its petrol powertrain and performance bias.
Why compared
more powerbetter valuecomparison pickcross brandsame body typesame powertrain
Usage fit
Family
47
/
44
City
18
/
22
Budget / value
37
/
29
Road trip
54
/
59
Performance
40
/
42
Cargo
22
/
29
Practical
31
/
23
Premium
67
/
64
Winter
30
/
30
Scores out of 100. Blue = BMW 840i · Orange = Mercedes-Benz CLS 520
Specs side-by-side
Spec
BMW 840i
Mercedes-Benz CLS 520
Values are representative — confirm for your market and trim.
Pros & cons
BMW 840i
- 4.6 s 0–100 km/h and 340 hp enable confident passing and highway merging
- Four seats and a 440 L trunk suit weekend getaways and longer trips
- Ranks well for safety in its class
- Good value in its segment at a listed price of 85,000
- Two doors make rear‑seat access less convenient for families
- 9.2 L/100 km combined consumption isn’t ideal for heavy stop‑go commuting
- Not optimized for tight city driving or frequent parking maneuvers
- Cargo flexibility is limited versus SUVs and hatchbacks despite trunk size
Mercedes-Benz CLS 520
- Brisk 0–100 km/h in 5.0 s and 367 hp for confident passing.
- Seats five with a 520 L trunk, fitting family travel and luggage.
- Secondary safety ranking signal supports premium family needs.
- 8.5 L/100 km combined is efficient for its class given the power.
- City driving is a weak match; stop‑start efficiency won’t rival hybrids or EVs.
- Premium price around 70,000 may stretch budgets versus non‑premium options.
- Practicality is not a standout; those needing max cargo flexibility may prefer an SUV or wagon.
- Petrol-only setup lacks electrified running‑cost benefits.
Verdict
Pick BMW 840i if…
Efficiency & everyday ease
BMW 840i is the choice if fuel economy and city-friendly driving are your priority.
Pick Mercedes-Benz CLS 520 if…
More power
Mercedes-Benz CLS 520 puts out 367 hp vs 340 — meaningfully quicker and more confident on motorways.