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BMW revives four-cylinders for better mileage

BMW is bringing four-cylinder engines back to the U.S. market as one response to the scheduled increase in fuel-economy regulations. BMW quit selling the four-cylinders for its 3-series lineup in 1999 because of low demand, but gasoline cost only $1.14 per gallon at the time.

Mercedes-Benz prototypes spotted

Modern technology makes it harder for automakers to hide their upcoming products from prying eyes. Take, for example, these images sent to us from Autoweek subscriber Jonathan Peters while he was in Utah. Peters speculates that what he saw was a gathering of a varied Mercedes-Benz cars being tested, along with cars from other carmakers for comparisons.

Mazda MX-5 Superlight concept at 2009 Frankfurt motor show

By Ben Pulman First Official Pictures 11 September 2009 09:30 To celebrate 20 years of the MX-5, Mazda has produced this special Superlight concept which be unveiled at the 2009 Frankfurt motor show next week. Mazda started with the facelifted version of its third-gen sports car and pared it back to basics to create an uncompromising sub-1000kg two-seater sports car. According to project lead designer Hasip Girgin, the challenge was 'to evolve the MX-5, developed to perfection during the last 20 years, to a higher and extreme level.' As such, Mazda seems to be treating the MX-5 Superlight like a portly Caterham, claiming the lack of a windscreen and roof makes the driver and passenger feel more connected with the environment.