One of the greatest drivers of all time, Formula 1 legend Ayrton Senna, helped fine tune the cornering/handling with Honda’s engineering team during the NSX prototype testing at the Suzuka circuit in Japan.
Back in time when supercars where temperamental, difficult to drive and unreliable, Honda redefined the supercar category by making a car that had Honda reliability, and high performance comparable to the Porsche 911 and Ferrari 348.
According to this eBay link, this NSX was 1 of 3 that Senna owned, and is now up for sale on eBay. The item is currently bidding at 51K GBP ($79K). Not a lot of evidence in the listing to support the claim of being owned by Senna, but still a cool item.