The body of the S2000 has an extremely rigid high X-bone monocoque frame that is designed to protect you in case of impact and to distribute loads evenly.
The body structure is designed to provide optimal passenger protection of a closed-top vehicle. Head-injury protection is built into the interior, and side-impact protection is built into the doors, door pads, side sills and floor of the cockpit.
Every S2000 comes equipped with essential safety features, such as 3-point seat belts with pretensioners, dual front airbags (SRS), side-impact door beams and an anti-lock braking system (ABS). Power-assisted 4-wheel disc brakes and Vehicle Stability Assist (VSA®) with traction control add a further measure of control and stopping power to the S2000. And for 2006, Daytime Running Lights (DRL) have been added to increase visibility while on the road.

The anti-lock braking system (ABS) uses a special modulator to pulse the brakes to help prevent wheel lockup. This helps the driver retain steering control during hard braking.
In the event of a moderate-to-severe frontal impact, the dual front airbags (SRS) inflate and deflate in a fraction of a second and are designed to help prevent serious head and upper-body injuries.
Working with ABS and the Drive-by-Wire throttle system, VSA enhances stability by detecting oversteer or understeer, and by braking individual wheels and/or reducing throttle to help restore the driver's intended path of travel.
Front 3-point seat belts with an automatic tensioning system ride across the lap and chest to help restrain occupants during sudden stops or impact.
The front and rear crush zones provide driver and passenger protection in full-frontal, offset-frontal and rear impacts.
Body rigidity is crucial to good handling in an open-top roadster, so Honda engineers designed a highly rigid monocoque body for the S2000. The heart of the structure is a large central tunnel that runs down the middle of the cockpit, which serves as the backbone and main load-bearing structure for the vehicle. The body's high side sills and innovative diagonal (X-bone) bracing at the front and rear of the cockpit provide additional rigidity. Suspension and drive loads from the wheels are fed directly into this structure via highly rigid subframes at the front and rear of the vehicle.
The Daytime Running Lights (DRL) can help increase visibility to oncoming cars, especially in rainy or foggy weather conditions.