Stay up to date on XP-4 as it races around VIR!By ExomotiveJuly 17, 2015News0 Comments It’s time for the 2015 Grassroots Motorsports Magazine Ultimate Track Car Challenge! Stay up to date with our Flyin’ Miata and DIYAutoTune-powered turbo Exocet Race car driven by Kevin Boswell (#127) via live timing from NASA Mid Atlantic’s website.