The same groundbreaking freevalve camless engine technology that allowed the Koenigsegg Gemera’s engineers unprecedented control over fuel consumption, exhaust timing, emissions and more finally went ...

Even with variable valve lift and timing technologies developed over the years, there are still constraints on how much control you have over your intake and exhaust valves. For those out of the loop, ...

Go inside the Turbo LS Miata GOATKART in this 4K build showcase. Explore the engine swap, turbo setup, fabrication details, and what makes this lightweight monster one of the wildest builds on the ...

The last time we looked in on the ambitious Wesley Kagan, he had managed to put Koenigsegg-style Freevalve engine tech into a lowly Harbor Freight Predator engine. The little engine ran, even if it ...

The first-generation Mazda Miata was announced by the Japanese carmaker in the United States in 1989 at the Chicago Auto Show, and the car rapidly became a hit, eventually turning into one of the best ...

In this list of best Mazda Miata engine swaps, we'll examine options with DIY kits and easily sourced donor engines. As tempting as putting a Hellcat engine into a two-seater convertible sounds, it's ...

Italian company Gorgona Cars has taken the much-loved first-gen Mazda Miata and turned it into something recognizable yet magical. The NM Concept is a single-seater speedster that promises plenty of ...

The funky purple Miata that's plastered on these pages is owned by Ric Stephens. Remember his name now, since you will be hearing a lot of it in the future. We first spotted Stephens (obviously hard ...

How do you go from mingling in the world of Ford's long-running Mustang muscle car to spending a full decade wrenching on and tweaking a 1990 Mazda MX-5 Miata roadster? That's a question for Patrick ...

The Mazda Miata has always been sold as proof that driving joy is about balance, not brute force, and nowhere is that clearer ...