It did deflate after it hit me rather than I hit the air bag. Blew the sun roof out which leaked ever after. A car pulled out from the near side. Dead stop, wheel to wheel contact. Broke the wheel and wishbone. Sorry mate didn't see you in front of three witnesses. I eventually got rid of the sunroof and air bags which had been refitted. I had a RS wheel but later swapped to a 968 CS one. The 964 clam shell was hard to find but located one in the States with OBC stalk cut out which I retrofitted.