2011 Alpina BMW B5 Bi-Turbo

Geneva Preshow: AC Schnitzer Turns the BMW 550i into the 540HP ACS5 Sport S Saloon

AC Schnitzer has prepared two production ready concept cars for this year's edition of the Geneva motor show. We've already told you about the first car, the diesel-powered 99d that is based on the BMW Z4 roadster, so here's the tuning firm's second proposal. The ACS5 Sport S Saloon is based on the latest BMW 550i sedan and is said to feature numerous performance and styling upgrades, though AC

New BMW Performance Kit Boosts 2.0-liter Diesel's Output to up 200HP

As well setting the stage for the world premiere of the Vision CD roadster concept and the production version of the pure-electric 1-Series ActiveE, the Geneva Motor Show will also see the launch of BMW's new Performance Power Kit for the firm's 2.0-liter turbocharged four-cylinder diesel engine found on numerous models including the 1-,3- and 5-Series range in both rear- and all-wheel drive configurations. The upgrade is available for both the previous 177HP as well as the newer 184HP 2.0L engine.

Thanks to an engine software optimization plus a larger intercooler and a more-efficient fan for the main radiator, output is lifted from 177HP and 350Nm to 197HP and 390Nm, and from 184Hp and 380Nm to 200HP and 420Nm, for each engine respectively. According to BMW, the acceleration from 80 to 120 km/h in 5th gear is up to one second faster after the conversion.

Buyers can also add BMW's Performance Sports Silencer that comes with two round, chrome plated 74mm tail pipes, and which in addition to optimizing exhaust back pressure, also offers a sportier sound.