1997 Bmw Z3 Roadster Convertible 2-door 1.9l on 2040-cars

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Cadillac ATS-V and Mercedes-AMG C63 S pitted Head to Head

Our favorite (and only) Autoblog-alum-turned-Motor Trend staffer is back with another Head to Head video, this time pitting the Cadillac ATS-V with the Mercedes-AMG C63 S. This performance machine shootout is ostensibly a way to figure out which of these new super sedans will earn the right to go toe-to-toe with the undisputed champion of its segment, the BMW M3. In reality, it's just a really good excuse to put three of the hottest sedans on the market on video at the same time... and there's certainly nothing wrong with that. Jonny Lieberman spends time in each of the two new challengers on the road, picking apart their powertrains, chassis and driving dynamics on the kinds of twisty roads drivers of these cars will relish. Then, he hands the keys off to Randy Pobst, who sort of acts as an unmasked version of a certain tame racing driver, except that he talks and has a personality. 0-60 and quarter-mile times are equated, braking performance is measured and scores are tallied before the two sport sedans end up at Willow Springs raceway. Interestingly enough, the car that proves (just slightly) faster at the race track isn't the car that wins the comparison. Curious? We're not going to spoil it for you. Check out the video, above. Then, for more action of these two machines, check out the videos just below. Related Video: News Source: Motor Trend Channel via YouTube BMW Cadillac Mercedes-Benz Luxury Performance Videos Sedan motor trend cadillac ats-v mercedes-amg c63

This BMW i8 gains Alpina V8 power thanks to tuner

German engineering firm Gabura Racing Technologies will strip out everything that makes a BMW i8 green in an effort to create a much wilder machine. Rather than a plug-in hybrid with a turbocharged three-cylinder, the company will cram in a twin-turbo V8. The firm even intends to produce a limited run of these insane conversions for customers. Gabura hasn't actually built one of these beasts yet, but it provided several glimpses of how it would work at the 2015 Professional MotorSport World Expo in Cologne, Germany. The company stuffs the engine under the front end in what looks like a quite snug fit. In several of the photos, the top of the valve covers even appears to be above the base of the windshield. According to BBC Autos, this mill is the S63 4.4-liter turbocharged V8 from the M5 and M6. Additional tuning with some help from Alpina allegedly pushes output to around 760 horsepower – more than double the i8's stock figure. One of Gabura's own six-speed sequential gearboxes reportedly transfers the power to the wheels. Gabura recently posted on Facebook that the engineers are now ready for the first conversion. They promised to "completely rebuild it inside-out, fueled with racing technology." We're very curious to see how an i8 looks and sounds after such a significant transformation.

Tier 1 suppliers call GM the worst OEM to work with

Among automakers with a big US presence, General Motors is the worst to work for, according to a new survey from Tier 1 automotive suppliers, conducted by Planning Perspectives, Inc.
The Detroit-based manufacturer, which has been under fire following the ignition switch recall and its accompanying scandal, finished behind six other automakers with big US manufacturing operations. Suppliers had issues with trust and communications, as well as intellectual property protection. GM was also the least likely to allow suppliers to raise their prices in the face of unexpected increases in material cost, all of which contributed to 55 percent of suppliers saying their relationship with GM was "poor to very poor."
GM's cross-town competitors didn't fare much better. Chrysler finished in fifth place, ahead of GM and behind Dearborn-based Ford, which was passed for third place this year by Nissan. Toyota took the top marks, while Honda captured second place.