I had a conversation today with one of the MMC Directors about the Plus 8/Speedster and whilst he did not have accurate quantity figures to hand, he felt that over 50 of these models had been built in total. Germany was the biggest single market and only about 15/20 cars have been sold in the UK.
Once MMC run out of V8 engines and move to a smaller, possibly twin turbo'd, BMW engine, then the V8 engined Trads and possibly the run-out and earlier Aero's could well become serious collectors items.
Just thought I'd let you lucky owners know about the sound bite...