The mid-engined sports car believed to preview the long-awaited MR2 successor stole the spotlight during the latest round of Japan's Super Taikyu endurance racing series. But it wasn't the only interesting machine Toyota brought to Okayama International Circuit. Gazoo Racing also used the race to test the GR86 Future FR Concept, an experimental prototype that ditched its turbocharged three-cylinder engine for a naturally aspirated 2.0-liter inline-four.
Before you bring out the pitchforks claiming the GR86 never had a turbocharged engine, its racing sibling did. A few years ago, Toyota fitted the coupe with the GR Yaris and GR Corolla's 1.6-liter engine, producing around 300 horsepower, to test synthetic fuels using a destroked 1.4-liter version. Now, that engine has made way for the company's newly developed naturally aspirated 2.0-liter unit.