- 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 intercoolers.
The Alpina D5 S also benefits from a power upgrade, rising from 326hp to 347hp partly thanks to the installation of a 48V mild hybrid system. Torque is up from 700Nm to 730Nm, too. Two-tenths are shaved off the 0-100kph time, down to 4.8sec, while a 275kph top speed results.
The B5 and D5 S get the same range of chassis upgrades as before. This includes electronically controlled dampers, stiffer springs and upgraded brakes, with four-piston fixed calipers at the front and single-piston floating calipers at the rear.
The B5 features an electromechanical rear-wheel steering system, aimed at improving around-town manoeuvrability while also aiding high-speed stability. Touring models retain the self-levelling rear axle air suspension as the standard 5 Series.
The aesthetic changes reflect that of the 2020 5 Series, too, with front intakes enlarged by 40 percent to improve cooling, redesigned lights front and rear and a new rear bumper. The trademark multi-spoke Alpina wheels are retained, alongside quad tailpipes for both variants.
Upgrades to the interior include a hand-stitched leather wheel and numbered plaque on the dashboard. The upgraded infotainment system features, as does a 12.3-inch digital instrument display with bespoke Alpina graphics.
While the Alpina models will not be available in India, BMW is expected to launch the standard 5 Series facelift in India in 2021.
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