Evolution orange was only offered a few years. Ditto Laguna Blue
The thing that will always hit imports is “provenance”. This particular RS-Limited. Maybe someone will track down a set of wheels, and maybe a set of seatc etc. But it won’t be the car that left the factory. I imagine the majority of RS-Limiteds in the UK aren’t particularly original. The best ones stayed in Japan.
And value is a product of supply and demand. Its not enough for a car to be “rare”, as I found.
Circa 2007, I had a M2-1002. Paid about £2500 for it then. It was a runner, and no rust, but it needed work, work that ultimately was beyond my skills and capability (needed a new front cross member, and a very expensive new nose cone). I was lucky that I more or less got my money back, by selling it to a MX5 trader. There was zero interest from the MX community. That trader, Sam Goodwin, sunk a lot of money into it, about £8000 all told. The car was a stunner. Only 100 made, and 98 of them were in Japan. He sold it for £6500. A couple of years later, it went on Ebay for £3500 to an Italian collector who also had the only other known M2-1002 that was in Europe.
There were a couple of M2-1001s hanging around. I had a chance at one in 2005, for £5500, but luckily the comedy p/ex offered on my literally mint 91 S-Special pulled me from the brink. That car disappeared, surfaced a few years later on a forecourt for around £1000. It wasn’t a good example. It then appeared, freshly restored at one dealer for £15,000, before appearing at another dealer for £12k. It then appeared in Italy, as part of the same collection at my M2-1002
A few years after the first one, I was offered another one, much much better, for £8k. But it was not at a financially good time for me (otherwise would have bit their hand off). That one also eventually ended up in the Italian collection.
I don’t think there is much of a market for oddball MXs in the UK