The W169 is constructed with high-strength steel alloys with bonded joints. It has a large number of airbags including optional rear side airbags (for side-impacts in the backseats), optional side-curtain airbags, and standard head and thorax-protection side airbags. The front airbags are adaptive with two-stage gas generators operating according to the severity of accident.This automobile has a 5 door hatchback type body with a front positioned engine driving through the front wheels. The A 160 Evolution is part of Mercedes-Benz’s W 168 family of cars. The 2.0 litre engine is a naturally aspirated, single overhead camshaft, 4 cylinder unit that has an output of 138 bhp (140 PS/103 kW) of power at 5500 rpm, and maximum torque of 205 N·m (151 lb·ft/20.9 kgm) at 4000 rpm. The power is transmitted to the wheels via a 5 speed manual gearbox. Its quoted kerb weight is 1165 kg. Maximum speed quoted is 203 km/h or 126 mph.