Bumpers, even those on expensive cars, don’t resist damage in low-speed impacts. The Infiniti G35, the worst performer, sustained almost $14,000 damage in a series of 4 tests conducted at 3 and 6 mph by the Insurance Institute for Highway Safety. The Saab 9-3 was the best, sustaining $5,243 damage. Only 3 cars sustained less than $6,000 damage, while 4 would cost more than $10,000 to fix.