The 2008 Mazda3 comes in both four- and five-door models. The entry-level engine in the sedan is the 2.0-liter I-4 that delivers 148 horsepower and city/highway fuel economy ratings of 24/32 mpg with the standard manual transmission. Available in the sedan and standard on the five-door is a 2.3-liter I-4 that delivers 156 horsepower and city/highway fuel economy ratings of 22/29 mpg with the standard manual transmission. Base price for the four-door Mazda3 I Sport model is $14,645. The five-door base price of the S Sport model is $18,675.