What could McLaren have gleaned from a trove of secret documents about its rival, Ferrari? Roll over the Ferrari F2007 below to find out.

Anti-roll bars stiffen the body for tight cornering. But there's a trade-off: Placing the bars high on the chassis lessens grip on the road but increases speed, lower placement provides better grip but slows you down. Which did Ferrari do? McLaren knew. A longer wheelbase changes the way a cars steers. When Ferrari lengthened its racers in 2007, everyone took notice. The documents revealed the dimensions down to the millimeter. A car's braking power can be moved from front to back with the flip of a switch. Ferrari's car, it turns out, automatically resets the system to a neutral position following a corner— a useful trick. Teams routinely change their car's weight distribution depending on the tires. Ferrari had an edge in that department: Last year all Formula One teams were instructed to use Bridgestone tires, a brand familiar to Ferrari but new to McLaren. A flexible rear wing provides important downforce on the corners without significantly increasing drag on the straightaways. But overly flexible wings are illegal. McLaren, after learning that Ferrari was bending the rules, complained about a slot gap in Ferrari's rear wing that flexed closed at top speeds. All F1 engines must weigh at least 95 kilograms (about 210 pounds). By making essential engine parts out of ultralight materials, Ferrari could put the weight exactly where it wanted it, lowering the center of gravity. Cars start every Grand Prix with whatever fuel they have left after the qualifying round. Knowing how Big Red handled this balancing act would be useful. Starting with too much gas will make the car slow and heavy during qualifying; too little will force it to make a risky early pit stop during the main event. F1 teams want tires to heat up quickly in the qualifying round but not overheat in the longer main event. Ferrari pumped its tires with CO 2 . Related Feature Article: Inside the Scandal That Rocked the Formula One Racing World