BMW 3 Series Sedan M340i vs BMW 520i — full comparison

BMW 3 Series Sedan M340i

Sedan · Mild_hybrid · FWD

vs

BMW 520i

Sedan · Gasoline · FWD

BMW 3 Series Sedan M340i

Car A

BMW 3 Series Sedan M340i

The BMW 3 Series Sedan M340i delivers serious pace with five-seat practicality and a 480-liter trunk. Its mild-hybrid setup and 8.1 L/100 km consumption make it efficient for its class while offering good value for the performance.

5 seatsSedanMild_hybrid5-star safety374 hpHybrid

BMW 520i

Car B

BMW 520i

The BMW 520i is an efficient five-seat saloon that suits road trips and growing families. Its balanced performance and 530 L boot make it good value in its segment.

5 seatsSedanGasoline5-star safety6 L/100km

Why compared different powertrainsame body typesame brandsame seatssimilar price

Usage fit

Family 63 / 63

City 45 / 37

Budget / value 54 / 54

Road trip 52 / 64

Performance 35 / 33

Cargo 26 / 29

Practical 44 / 46

Premium 54 / 57

Winter 26 / 30

Scores out of 100. Blue = BMW 3 Series Sedan M340i · Orange = BMW 520i

Specs side-by-side

Spec BMW 3 Series Sedan M340i BMW 520i

Values are representative — confirm for your market and trim.

Pros & cons

BMW 3 Series Sedan M340i

Explosive acceleration and strong power (374 hp, 4.4 s 0-100 km/h).
Seats 5 with a 480-liter trunk for growing families and road trips.
Mild-hybrid efficiency; 8.1 L/100 km is efficient for its class.
Good value in its segment at a listed price of 54,900.
8.1 L/100 km may still feel thirsty for daily high-mileage commuting.
Front-wheel drive layout may not suit buyers seeking rear-biased dynamics.
Not ideal for cargo-heavy use despite a decent 480-liter trunk.
Winter driving is not a standout based on its profile.

BMW 520i

Efficient for its class at 6 L/100 km, ideal for long-distance driving
530 L trunk handles family luggage for holidays and weekends
Adequate pace for highways (184 hp, 0–100 km/h in 7.9 s, 235 km/h top speed)
At about 55,000, it represents good value in its segment
Saloon body limits loading flexibility for bulky items despite the volume
Front-wheel drive may not suit buyers seeking AWD confidence for harsh winters
Moderate acceleration; not for those prioritizing punchy performance
Price may exceed tighter family-sedan budgets

Verdict

Pick BMW 3 Series Sedan M340i if…

Lower entry price

BMW 3 Series Sedan M340i starts lower, making it the stronger value pick if budget is a priority.

Pick BMW 520i if…

Performance & capability

BMW 520i is the choice if you want more power, speed, or all-weather capability.

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