Have just impulse purchased one of these funny wedge-shaped things. What's the availability of hardtops, and what do they tend to sell for? I intend using through the winter so a hardtop appeals.
ebay or club website is best bet, usually expect to pay 100-150 quid. They tend to come with heated rear screens which are useful too. if you are tall (6ft plus) or intend to take on track and wear a skid-lid, avoid the hardtops with a sunroof.
I have seen one of those on eBay, what kind of loon buys a hardtop with a sunroof? Fortunately it's not a real issue for me as I'm a relative shortarse at 5'8".