Note: The original post said the car was at Coppell High School. It was at Hebron High School in Carrollton. And yes, it was driven to school by a 15-year-old, per Jalopnik's update, which you'll find below.
The car you see above is a Lamborghini Gallardo LP570-4 Super Trofeo Stradale. It's rare (only 150 exist in the world), expensive (almost $300,000 on eBay), and was apparently parked in the lot of -- wait for it --
Coppell Hebron High School in Carrolton.