Huh, I thought I'd replied to this, but I've not seen it show up - sorry.
Anyway, it's a Toyota (an Avalon, which shares a lot of parts with the Camry - both of which may or may not have ever been available within the UK, or may have been so but under a completely different name :-)
After toothpasting things are definitely better - I put about 500 miles on it on Saturday and there was quite an improvement.
cheers
Jules