2005 Bmw 645ci Base Convertible 2-door 4.4l on 2040-cars

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AC Schnitzer ACS4 Sport packs 510 hp under a subdued carbon fiber bodykit

One of the interesting things about the Geneva Motor Show is the breadth of the European auto industry that it covers. Beyond just the stands from major manufacturers and boutique marques, the event also hosts the regions top tuners. Among them this year are the BMW specialists AC Schnitzer, with myriad upgrades for the M4. By the time the company is done, the coupe gets renamed the ACS4 Sport. The M4 is already a potent machine with its 431-horsepower, turbocharged inline-six, but for customers willing to spend the money, more performance is always possible. AC Schnitzer's engine upgrade takes power up to 510 hp and 476 pound-feet of torque, and buyers can also add a new exhaust with carbon-fiber-surrounded tail pipes barely protruding from the rear. The company offers two suspension kits, as well. The first lowers the BMW by 1.0-1.2 inches in front and 0.4-0.6 inches in the rear. However, for drivers who really want to scrape the ground, an adjustable racing option drops the front by 1.2-1.6 inches and the back by 1.2 inches. Of course, AC Schnitzer's buyers also want to show off their cars' added performance, and the company is ready with a host of carbon fiber pieces. Up front, there's a new front spoiler, splitter and side flicks, and the rear is available with a diffuser, roof spoiler and fixed rear wing. A wide variety of wheels finish off the sporty look, including the brand's AC1 BiColor twin-spoke design offered in forged or standard versions. Get a full look at the German tuners fairly tasteful upgrades in our gallery from the show floor, above. ?"Man, Machine & More" – The M4 by AC Schnitzer Aachen-based tuning experts open new dimensions in the field of Motorsport power Man, machine & more - The tuning experts at AC Schnitzer have given the BMW M4 with Motorsport power a further kick of energy. Once again, the Aachen-based tuning specialists have shown that there's no upper limit to power and sporting performance. To build up the muscle power of the BMW M4, AC Schnitzer has provided a performance upgrade containing of an additional control unit which increases the performance from 431 to 510 hp, and from 550 to 645 Nm. Scope of delivery of every AC Schnitzer performance upgrade includes always a two years guarantee which can be upgraded up to three years. After a visit to the Aachen workshops, the powerful energy combustion developed with the AC Schnitzer "Efficient Performance" know-how is also revealed in the exhaust of the M4.

2015 BMW M4 gets initiated into the club

It's easy for enthusiasts and traditionalists to give BMW a hard time these days, what with its plans to add more front-wheel drive models and seeming move away from more emotionally connected cars. However, the push for perfection that underscored its old Ultimate Driving Machine motto is still in there, especially in its M models. In fact, the first M4 recently made it to US shores, and the company thought the only appropriate way to celebrate was to introduce its new coupe to some of its high-performance forefathers.
The M4's initiation into the M car brotherhood involved bringing together no fewer than 52 classic and newer models - including four racecars and many privately owned vehicles - to an empty parking lot and letting the coupe drift and slalom around them to say hello. According to BMW, there was a combined 11,566 horsepower on hand. It takes a pretty trusting owner to stand back and watch as a brand-new vehicle slides its tail out with the rear wheels smoking within feet of their pride and joy. Stay tuned until the end where the owners and their cars get a shout out in the credits. Scroll down to read BMW's press release about it.

Next-gen BMW 5 Series sedan spotted with production body, possible PHEV

The current BMW 5 Series is just a few years old since its 2009 debut, but the Bavarians are already preparing to put the model out to pasture. Here's our first glimpse at the production bodywork for the next-gen sedan after spotting the wagon version during testing – twice. While the cladding and swirling camouflage make specific details difficult to discern, it doesn't look like we should expect any massive changes in design language from the new model. The nose appears to dip a bit more at the tip of the front end, but otherwise there's no way to mistake this as anything other than a 5 Series. Squint hard enough at the front left fender and you can notice what seems to be a small door. Our spies think that this might be hiding the charging port for a plug-in hybrid version. While the styling doesn't appear to be changing much, the next 5er reportedly has a new platform underneath the skin that supposedly will help it shed around 220 pounds. The debut for this lighter but likely similar looking BMW is expected sometime in 2016.