BMW 3 Series vs Mercedes-Benz C-Class

The BMW 3 Series starts from $94,700 before on-road costs, while the Mercedes-Benz C-Class opens at $76,900. That makes the Mercedes-Benz C-Class the more affordable entry point by $17,800.

Once you factor in stamp duty, registration, CTP insurance, and dealer delivery, expect to add roughly 8-12% on top of the RRP depending on your state. That puts estimated driveaway prices in the ballpark of $104,170 and $84,590 respectively.

Over 5 years, the running costs are nearly identical since both have similar efficiency.

Both the BMW 3 Series and Mercedes-Benz C-Class hold a 5-star ANCAP safety rating. Adult occupant protection scored 97% for the BMW 3 Series and 91% for the Mercedes-Benz C-Class.

Where the two diverge is in active safety technology. Both models are evenly matched with 6 out of 10 key ADAS systems.

Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 6 in the BMW 3 Series and 9 in the Mercedes-Benz C-Class.

The BMW 3 Series features a 14.9-inch touchscreen paired with a 12.3-inch digital dash, while the Mercedes-Benz C-Class gets a 11.9-inch display and 12.3-inch instruments. Apple CarPlay and Android Auto are standard across both.

The BMW 3 Series stands out with Harman Kardon audio that you will not find on the Mercedes-Benz C-Class. The Mercedes-Benz C-Class counters with head-up display, wireless charging, panoramic roof and ambient lighting. Which feature set matters more depends on your daily routine and priorities.

Interior trim differs: the BMW 3 Series gets sensatec synthetic leather upholstery while the Mercedes-Benz C-Class offers synthetic leather.

The BMW 3 Series uses a Petrol producing 190kW and 400Nm of torque, sent through a auto to a RWD layout. It covers the 0-100km/h sprint in 5.8 seconds.

The Mercedes-Benz C-Class responds with a Petrol making 150kW and 300Nm, paired to a automatic driving the rear wheels. It gets to 100km/h in 7.3 seconds.

The BMW 3 Series has the clear power advantage at 190kW vs 150kW. In the real-world sprint, the BMW 3 Series is 1.5s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.

The BMW 3 Series measures 4,713mm long on a 2,851mm wheelbase, 38mm shorter than the Mercedes-Benz C-Class at 4,751mm (2,865mm wheelbase). The longer wheelbase on the Mercedes-Benz C-Class generally means more rear legroom.

Boot space is 480L in the BMW 3 Series and 455L in the Mercedes-Benz C-Class, giving the BMW 3 Series a 25L advantage.

For towing, the Mercedes-Benz C-Class leads with a 1,800kg braked capacity vs 1,600kg. That 200kg difference matters if you regularly hitch up.

Based on 15,000km of annual driving, fuel costs roughly $1,853/year for the BMW 3 Series and $1,967/year for the Mercedes-Benz C-Class. That is a $114 annual difference in favour of the BMW 3 Series.

Estimated annual total: $1,853 (BMW 3 Series) vs $1,967 (Mercedes-Benz C-Class). The BMW 3 Series saves you roughly $114 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.

Warranty: 5 years / 999,999km (BMW 3 Series) vs 5 years / 999,999km (Mercedes-Benz C-Class). Both match on warranty length.