Editing Crumple zone (section)

== "Sleds" inside safety cells ==
The 2004 [[Pininfarina]] ''[[Pininfarina Nido|Nido]]'' [[Experimental Safety Vehicle]] locates crumple zones ''inside'' the survival cell. Those interior crumple zones decelerate a sled-mounted survival cell.<ref name="autoevolution1"/> Volvo has also been developing this idea for use in small cars. Their driver's seat is mounted to what is basically a "sled" on a rail, with shock absorbers in front of it. In an impact, the whole "sled" of driving seat and belted-in driver, slides forward up to {{convert|8|inches|cm}}, and the shock absorbers dissipate the peak shock energy of the impact, lengthening the deceleration time for the driver. Simultaneously, the steering wheel and the driver's side dashboard slide forward to make room for the driver, as they are thrown forwards stretching the seatbelt. Combined with a front crumple zone and airbag, this system could greatly reduce the forces acting on the driver in a frontal impact.<ref>{{cite web|last=Grabianowski |first=Ed |url=http://auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/crumple-zone3.htm |title=HowStuffWorks "Preventing Fatalities in Auto Racing" |website=[[HowStuffWorks]] |publisher=[[System1]] |date=2008-08-11 |access-date=2012-07-16}}</ref>