Mercedes-Benz C-Class vs BMW 3 Series

The Mercedes-Benz C-Class starts from $76,900 before on-road costs, while the BMW 3 Series opens at $89,900. That makes the Mercedes-Benz C-Class the more affordable entry point by $13,000.

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 $84,590 and $98,890 respectively.

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

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

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 9 in the Mercedes-Benz C-Class and 6 in the BMW 3 Series.

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

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

The Mercedes-Benz C-Class uses a Petrol producing 150kW and 300Nm of torque, sent through a automatic to a RWD layout. It covers the 0-100km/h sprint in 7.8 seconds.

The BMW 3 Series responds with a Petrol making 190kW and 400Nm, paired to a auto driving the rear wheels. It gets to 100km/h in 6 seconds.

The BMW 3 Series has the clear power advantage at 190kW vs 150kW. In the real-world sprint, the BMW 3 Series is 1.8s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.

The Mercedes-Benz C-Class measures 4,751mm long on a 2,865mm wheelbase, 42mm longer than the BMW 3 Series at 4,709mm (2,851mm wheelbase). The longer wheelbase on the Mercedes-Benz C-Class generally means more rear legroom.

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

For towing, the BMW 3 Series leads with a 1,800kg braked capacity vs 1,800kg. That 0kg difference matters if you regularly hitch up.

Based on 15,000km of annual driving, fuel costs roughly $1,910/year for the Mercedes-Benz C-Class and $2,024/year for the BMW 3 Series. That is a $114 annual difference in favour of the Mercedes-Benz C-Class.

Estimated annual total: $1,910 (Mercedes-Benz C-Class) vs $2,024 (BMW 3 Series). The Mercedes-Benz C-Class 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 (Mercedes-Benz C-Class) vs 5 years / 999,999km (BMW 3 Series). Both match on warranty length.