Alpina has decided to boost the B5 Bi-Turbo, which is basically a tuned 550i F10 5-Series tuned to the max. The Alpina version was already a powerful beast, delivering 500 hp instead of the stock 407, but now the 4.4-liter V8 is doing what any tuned engine is supposed to: challenge the next more powerful version of the car, in this case the M5.

Thus, Alpina has tuned the B5 to produce 540 ps (533 hp) and and 730 Nm (538 lb-ft) of torque.

The Lamboghini Gallardo Superleggera is already an exclusive version of the Italian supercar, but the visual differences to the other models are pretty limited, which is why certain users turn to aftermaket develoeprs in an effort to make their cars stand out in the crowd.

The Superleggera in the adjcent photos comes from the US, where it was tuned by EVS Motors, with the project being a one-off for a special customer.

AC Schnitzer has big plans for next month’s Geneva Motor Show, with the tuning specialist set to give us two new developments at the Swiss event. The first will be a project based on the 2012 F10M BMW M5, while the second will use the BMW F30 3-Series as a starting point.

G-Power, a tuner that has an obsession with taking BMWs to ridiculously cool power levels, has targeted the 2012 M5 and, after two months of work, is now releasing its Stage 1 package for the vehicle.

The 4.4-liter twin-turbo V8 unit has been boosted to 640 hp and 780 Nm, which means that it develops an extra 80 hp and 100 Nm compared to the stock setup. Thanks to the addition of a stainless steel exhaust system, the engine now also has a deeper growl.

Staying true to his philosophy of combining mechanical perfection and exterior beauty, Afzal Kahn’s formula of club-class quality and high-tech engineering puts the wide track Audi Q7 (available in ibis and pearl white) somewhere near the top of the premium SUV pile.

Safe and luxurious, with imposing looks and plenty of visual presence – the Q7 Kahn exterior package helps disguise the proportions.