I will say in my opinion Admiral Multi-car, particularly the sales... Awesome. (hard to believe I can say that about an insurance company)
Really helpful and ended up with the cost of my 2 cars for less than the price of my existing policy

, as they duplicated my No-Claims

And they do cover the optional extras, including the Panoramic roof (with glass excess), someone on here said they didn't, and no extra cost.
Replacement cost, is market value only so consideration for GAP is essential.
Only downside is the customer aftersales is a dodgy call centre...
Sales guy kept saying I saw that on Top gear in the desert... looked fantastic.