Mazda debuted its fuel-efficient SKY-G and SKY-D engines at the Tokyo motor show earlier this year, but never revealed when or in which car either engine would debut. Rumor has it the 2011 Mazda MX-5 will be first to use the fuel-sipping SKY-G engine.
Mazda has made no announcement about its future plans for its lightweight roadster, but Inside Line says an “inside source” revealed the next Miata will grow even smaller and lighter than the current car. That's not surprising, as recent concepts like the MX-5 Superlight have focused on shaving weight. The new MX-5 will reportedly tip the scales at 2200 pounds, approximately 300 pounds lighter than the current car.
The biggest change planned for the car is under the hood. Although the current MX-5 gets pretty good fuel economy, the next-generation with the SKY-G engine should be stellar. A 1.3- or 1.5-liter version of the SKY-G engine Mazda showed at the 2009 Tokyo show could help the next MX-5 achieve fuel economy figures in the realm of 50 mpg.
This impressive fuel economy shouldn’t hinder performance, as the engine is expected to have around 150 hp. Combined with the 300-pound drop in curb weight, the next-gen MX-5 could have the same power-to-weight ratio as the current car.
Source: Inside Line