There are a few kitcar companies who do replicas. Jag C and D types, GT40 for example. The most common kits seem to be Cobras, Lotus7 styles. There are some very good versions to be had. I seem to remember one company doing Ferrari fibre glass bodies for MX5 donor cars and Ferrari stopped them selling Ferrari badges, possibly also the bodies. Just imagine a Ferrari 2/3 the size with a piddly 4 cyl engine!
It is a shame that Suffolk have had to stop making new cars as they had a very good reputation and quality. Revenue from sales must be tough to get these days for similar specialist, niche companies. I wonder if a licensing agreement was one option but the sums not adding up? JLR asking too much or up front fees and not based on individual car sales? Very protective trademark attitude?