• 4.4-litre V8 petrol-powered B5 sees power output rise from 608hp to 622hp
  • Diesel D5 S gets addition of mild hybrid tech, and now makes 347hp and 730Nm
  • Cosmetic updates are in line with those of the 5 Series facelift

Alpina has refreshed its range of BMW 5 Series-based performance models – the petrol B5 and the diesel D5 S  – to coincide with the base car’s mid-life update. The updated models are set to go on sale in international markets in the coming months

The headline upgrade for the B5 over the outgoing model is a power boost. Based on the M550i, the 4.4-litre twin-turbo V8’s power is now at 622hp, up from the old car’s 608hp, with 800Nm of torque. That translates to a 0-100kph time of 3.4sec (3.6sec for the estate) and a 330kph top speed (322kph for the estate). The extra power comes from an ECU retune and an improved cooling system with enlarged…

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