OK, I've done a search on Go Compare. Admiral quote: £445.40
Now I do a search on Confused.com with EXACTLY the same details (and I have checked): £398.15 from ADMIRAL. Same conditions.
Someone want to explain this? Where did that £50 come from?
Not happy. I'll go back to getting individual quotes from individual companies now. I can see that the arc of the comparison websites is on the way down - no doubt either their scraping algorithms are getting too complex, or they don't fill in all the fields correctly, or (frankly) they're on the take from the insurance companies involved. I would wager comparison sites, with their huge advertising campaigns (funny how often we see go compare ads, eh?) are getting large kickbacks from the insurance companies.
I wonder what Direct Line will quote me...