The Lucra LC470 is seriously fast, but you've almost definitely never heard of it. The 911 GT3 is also seriously fast, and you've heard of it. Here's what it's like when they race.

On tonight's Top Gear USA, Tanner Foust is in the 911 GT3 and races The Stig in the Lucra. The Lucra is fast, but lightweight will do that.

See how it ends up tonight at 9 EST on History.