There has been a lot to like about the Mazda6 and now there's even more. Mazda has created the ultimate Mazda6 in the Mazdaspeed6. The all-wheel-drive Mazdaspeed6 features a 274hp turbocharged four cylinder, limited slip differential and six-speed transmission. An upgraded suspension and distinct exterior trim pieces round out the package. With a price tag under $30k, the Mazdaspeed6 will be one of the best performance values on the market.