What makes the 2016 BMW M4 James Currie is entering into the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports so special?
No, it’s not the 500 horsepower on tap from the car’s S55 engine fitted with upgrades that include aftermarket downpipes, Dinan coil packs and bootmod3 tuning platform.
It’s not the roll cage, the Apex wheels or …
