The headline maker is of course the new B5 which is based on the M550i xDrive. The tuner has cranked up the 4.4-litre twin-turbo V8 to a whopping 613 hp (457 kW) and 800 Nm of torque. This translates to a 100 km/h sprint time of just 3.4 seconds and a 330 km/h top speed.
The extra power comes from an ECU retune and an improved cooling system with enlarged intercoolers.
The diesel offering, D5 S also gains some grunt rising from 322 hp (240 kW) to 342 hp (255 kW) partly thanks to the installation of a 48V mild-hybrid system.
Styling wise the pair look a little more aggressive with a new front bumper with larger air intakes. Designers also installed a front splitter, prominent Alpina badging and 20-inch forged alloy wheels.
Upgrades to the interior include a hand-stitched leather wheel and numbered plaque on the dashboard. The upgraded infotainment system features, as does a 12.3in digital instrument display with bespoke Alpina graphics.