2014 Detroit Auto Show: A Sneak Peek At Some Of The Mean Machines

The North American International Auto Show begins this week in Detroit with media and industry previews. It opens to the public Jan. 18.

Here are some of the new cars and experimental concept vehicles unveiled at the show:

PORSCHE 911 TARGA: Porsche is dialing up the 911 with two new models, the Targa 4 and 4S. As with the original 1965 Targa, the new models features a roof bar, movable front roof section and wraparound rear window. But the roof of the Targa 4 and 4S can open and close at the push of a button and stow behind the rear seat. Porsche said they are aiming for a "sporty and low-slung profile." The Targa 4 accelerates from zero to 60 mph in 4.6 seconds and the 4S accelerates from zero to 60 in 4.2 seconds with an optional package. The Targa 4 has a sticker price of $101,600 and the 4S is at $116,200. Deliveries are scheduled to start this summer.

CORVETTE Z06: General Motors rolled out a hot new version of the Corvette Stingray, called the Z06, with a staggering 625 horsepower supercharged V8 engine. The company says the performance of the 2015 Z06 will rival the best supercars in the world. The car gets a new 6.2-liter engine and a new eight-speed automatic transmission. A seven-speed manual also is available. The standard corvette has a six-speed automatic. The aluminum frame from the standard Corvette carries over into the Z06 and the Corvette Racing CR7, also unveiled at the show. The car also has a removable top like the standard Stingray. No performance times or prices were released. The standard Corvette starts around $52,000.

MERCEDES-BENZ S600: The top model from Mercedes-Benz is getting an upgrade. The S600 sedan features a 12-cylinder, 6.0-liter twin-turbocharged engine that packs 523 horsepower. With the look and feel expected from the highest tier of the luxury brand, it seats four or five and features touchpad controls that allow letters, numbers and special characters to be entered in handwriting in nine languages. It's scheduled to go on sale in the spring. Pricing is yet to be announced.

BMW 2 SERIES COUPE, M3 SEDAN, M4 COUPE: The two-door, four-seat, rear-wheel drive 2 Series Coupe — the replacement for the 1 Series Coupe — will come in a 228i version, which features a 240 horsepower, 2.0-liter V4 engine, and the M235i version, which features a 322 horsepower, 3.0-liter V6 engine. The 228i promises zero to 60 mph acceleration in 5.4 seconds while offering 22-23 mph in the city and 34-35 mpg on the highway, depending on the transmission. With the M235i, drivers can go from zero to 60 mph in 4.8 seconds with a top speed of 155 mph. Gas mileage isn't as good, at 19-22 mpg in city driving and 28-32 mpg on the highway. Scheduled to go on sale starting in March, BMW plans to sell the 228i for $33,025 and the M235i for $44,025. BMW also is showing its new 2015 model M3 Sedan and M4 Coupe. Plans call for the cars to go on sale in early summer, with pricing and options announced in the coming months.