Justin Cupler has been a member of the TopSpeed team since 2012. Justin's love for cars started back when he was just five years old, helping his dad work on his 1957 Chevy Bell Air and then his 1966 ...

You hear endless myths about the Mazda RX-7, from breathless praise of its “magic” to horror stories about blown apex seals.

The rotary engine was an unconventional design that delivered great power for its size. Here's what's good and bad about it.

Antonio is a chemical engineering student pursuing his master's degree in chemical engineering and sustainable processes. Throughout his academic journey, he has gained substantial knowledge in areas ...

The R130 was a very rare model, produced for only three years and with fewer than 1,000 units built. It was also notable as the only front-wheel-drive Mazda model powered by a rotary engine until the ...

Got a burning question or simply need some advice with problems you’ve encountered while wrenching on your current/future projects? Ask our automotive guru Eric Hsu anything—literally, he’s going to ...

Over-the-top rotary builds are an enthusiast tradition. Because so few rotary cars have been made, the limits of the engine type haven't been fully exploited by automakers. It's been tuners who have ...

The automotive world hasn’t seen a rotary engine in production since the Mazda RX-8 was axed in 2012. However, the Crighton CR700W is bringing it back in spectacular fashion in a machine billed as the ...

Mazda has been building new parts for the original MX-5 Miata for a couple of years and even offers a full restoration service over in Japan. Now it's expanding the parts program to the RX-7, ...

Imagine an engine that's 30 percent smaller than a traditional piston design of like output, and that runs smoothly, with less noise and vibration. Plus, it burns several types of fuel. That's the ...

When Dr. Felix Wankel created an engine that could produce big power while taking up the smallest space possible, who would have expected the tuning world to accept it with such open arms? Considering ...

This file type includes high resolution graphics and schematics when applicable. Automotive engineers are concerned with weight-to-power ratios when designing vehicles. While light-weighting is a ...