SBL 707 is YD1.1626 as confirmed by the Kithead Trust registration records. It was in (2) 1959 European rallies, then repainted BRG and sent to South Africa. Now in Switzerland. In early February it was for sale asking 135,000 Euros (ya, sure).

This car possibly has one of the left over 1959 Sebring BMC Comps prepared Twin Cam roadster bodies. See article in MGA Twin Cam 50th Anniversary book.