Still wouldn't pay over regular NSX price for it. It's at 67k euros atm. Did anyone happen to search integra type r's on the uk ebay? b****es be getting the best deals in the world. Perfect 98 spec ITR for about $5k USD
http://www.ebay.co.uk/itm/1998-HONDA-INTEGRA-1-8-TYPE-R-WHITE-RARE-98-SPEC-JDM-IMPORT-B18C-VTEC-DOHC-/121160063481?pt=Automobiles_UK&hash=item1c35b3d9f9
If money was no object I would probably pay a bit more for a bit of it's historical importance... Senna was pretty important in the development of the NSX as well as a great and famous race car driver. It's a common name to be heard when talking about Formula One. But it would need to directly have some sort of evidence that he was a owner of the car. Either a confirmation letter from his family or Honda themselves and a old registration card with his name on it.
NSX's usually still go for quite a bit of money $25K-$80K depending on condition and mileage so the 42K GBP ($65,6922 USD) ending bid sound's like a fairly good deal for a low miled minty NSX owned by a very famous and popular deceased Formula 1 driver.
That ITR is $7800 USD, Which is still kind of low for a clean ITR but not a deal of the century... They don't have a really big tuner scene out in the UK so there is a smaller demand for tuner cars. Also keep in mind they get just about all of the good cars we don't get R32-R35 Skylines, Silvias, Civic Type-Rs, Older Evo's and STI's so there is a bit more competition in that same price range.