The Ferrari & Maserati Festival of Racing at Donington Park in May 2003 featured a race titled 'Ferrari Formula Classic' which included, amongst other cars, several examples of the Ferrari 308 and 328 models. Here are photographs of four of the cars which I took on that day.
This appears to be a 328 GTS and has no race number, but should be the 1988 model of Peter Everingham which is the only 328 GTS shown in the programme of the event.
This is the 1987 328 GTB of Mike Furness
This 328 GTB doesn't seem to have been taking part in the racing and behind it is the Ferrari 360 of Mark Cale
This is the 1983 308 GTBi QV of Odhran McConnell