safety first. At first glance. smart’s tridion safety cell is a design element. framing each smart in eye-catching color. But. our patented tridion safety cell is modeled after a racecar roll cage. It's a real bodyguard. And a head guard. And a thigh guard. And a forearm guard. The passion coupe comes standard with 8 full-size airbags to help protect you - driver. passenger and knee bolster airbags are standard on all smarts. Did we mention 8 full-size airbags come standard. Should you ever find your smart in danger of swerving. the esp® (electronic stability program) recognizes the danger before you do. It throttles the engine and brakes the wheels to stay in control. Steel deformation elements (or crash boxes) absorb energy from minor collisions. If you ever have a fender bender. damaged bumpers are simple and inexpensive to replace.