Mercedes-Benz GLB vs Audi Q3 Sportback

The Mercedes-Benz GLB starts from $63,900 before on-road costs, while the Audi Q3 Sportback opens at $64,600. That makes the Mercedes-Benz GLB the more affordable entry point by $700.

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 $70,290 and $71,060 respectively.

ANCAP safety ratings have not been published for both models yet. We will update this section when crash test results are available.

The Mercedes-Benz GLB features a 10.3-inch touchscreen paired with a 10.3-inch digital dash, while the Audi Q3 Sportback gets a 10.1-inch display and 10.3-inch instruments. Apple CarPlay and Android Auto are standard across both.

The Mercedes-Benz GLB stands out with wireless Apple CarPlay/Android Auto, wireless charging and heated front seats that you will not find on the Audi Q3 Sportback. The Audi Q3 Sportback counters with Apple CarPlay, head-up display and Bang & Olufsen audio. Which feature set matters more depends on your daily routine and priorities.

Interior trim differs: the Mercedes-Benz GLB gets synthetic leather upholstery while the Audi Q3 Sportback offers leather.

The Mercedes-Benz GLB uses a Petrol producing 120kW and 270Nm of torque, sent through a automatic to a FWD layout. It covers the 0-100km/h sprint in 9.4 seconds.

The Audi Q3 Sportback responds with a 4-cylinder inline petrol with turbocharging, MHEV technology and Cylinder on Demand (CoD) making 110kW and 250Nm, paired to a 7-speed s tronic driving the front wheels. It gets to 100km/h in 9.1 seconds.

The Mercedes-Benz GLB has the clear power advantage at 120kW vs 110kW. In the real-world sprint, the Audi Q3 Sportback is 0.3s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.

The Mercedes-Benz GLB measures 4,634mm long on a 2,829mm wheelbase, 103mm longer than the Audi Q3 Sportback at 4,531mm (2,681mm wheelbase). The longer wheelbase on the Mercedes-Benz GLB generally means more rear legroom.

Boot space is 570L in the Mercedes-Benz GLB and 488L in the Audi Q3 Sportback, giving the Mercedes-Benz GLB a 82L advantage. The Mercedes-Benz GLB seats 7 vs 5.

For towing, the Mercedes-Benz GLB leads with a 1,600kg braked capacity vs 1,200kg. That 400kg difference matters if you regularly hitch up.

Based on 15,000km of annual driving, fuel costs roughly $2,138/year for the Mercedes-Benz GLB and $2,138/year for the Audi Q3 Sportback.

Estimated annual total: $2,138 (Mercedes-Benz GLB) vs $2,138 (Audi Q3 Sportback). Use our Fuel Cost Calculator to estimate based on your driving.

Warranty: 5 years / 999,999km (Mercedes-Benz GLB) vs 5 years / 999,999km (Audi Q3 Sportback). Both match on warranty length.