Alpina B3 G20 (2020 – present) vs Mercedes-AMG GT 4-DOOR COUPE (2020 – 2023): specs compared

The Alpina B3 G20 is the more powerful of the two, with up to 462 hp against 435 hp. It is quicker, reaching 100 km/h in 3.8 s against 4.5 s. It has the higher top speed: 303 km/h against 285 km/h. The Mercedes-AMG GT 4-DOOR COUPE uses less fuel, from 8.7 L/100 km against 9.8 L/100 km.

Specification Alpina B3 G20 Alpina B3 G20 2020 – present Mercedes-AMG GT 4-DOOR COUPE Mercedes-AMG GT 4-DOOR COUPE 2020 – 2023
Overview
Origin Germany Germany
Documented years 2020 – present 2020 – 2023
Body style Sedan 4 Doors · Sedan
Variants 1 1
Fuel Petrol Hybrid
Drive AWD AWD
Gearbox Automatic Automatic
Performance
Power 462 hp 435 hp
Torque 700 Nm 520 Nm
0–100 km/h 3.8 s 4.5 s
Top speed 303 km/h 285 km/h
Economy
Fuel economy 9.8 L/100 km 8.7 L/100 km
Dimensions
Length 4,719 mm —
Width 1,827 mm —
Height 1,440 mm —
Wheelbase 2,851 mm —
Curb weight 1,785 kg —

Ranges cover all variants of each car. The highlight marks the best version per row.

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