Thanx, the CRX is RHD UK model (too modified to insure I think), and the NSX is LHD and was actually originally a German car imported to the UK. I can get certificate of no-claims for past 6 years or so, so I guess there will be some discount?
I'm thinking of just locking up the CRX in the garage for few years, and use the NSX there. If the insurance is going to cost me 7000 Euros, then I might just get a green card from my insurance company in the UK (but I think they will only give me a full cover for 90 days, and then third party only after that). Full insurance in the UK for me parking in the middle of London on the street is about 1500-2000 Pounds (3000 Euros)...