Hundreds of reports and documents on rear-end collisions involving Pintos conclusively reveal that if you ran into a Pinto you were following at over 30 miles per hour, the rear end of the car would buckle like an accordion, right up to the back seat. The tube leading to the gas-tank cap would be ripped away from the tank itself, and gas would immediately begin sloshing onto the road around the car. The buckled gas tank would be jammed up against the differential housing (that big bulge in the middle of your rear axle), which contains four sharp, protruding bolts likely to gash holes in the tank and spill still more gas. Now all you need is a spark from a cigarette, ignition, or scraping metal, and both cars would be engulfed in flames. If you gave that Pinto a really good whack—say, at 40 mph—chances are excellent that its doors would jam and you would have to stand by and watch its trapped passengers burn to death.