I’d say E39 M5 all day long, but for some reason the OP has specified Auto only.
Last manual I had was a 405 Mi16, had many auto’s before and lots since – m/c is a manual though, with a proper (sequential) gearbox 🙂
The Nissen’s are fun cars, but only 2 seats so no good – have 3 kids.
Looked at E500’s, good spec and well quick – but as said heavier on fuel than I’d want.
Audi’s just don’t do it for me.
Monaro’s are fun (but manual) and I nearly managed one as a company car – I could have any Vauxhall as my grade was a 530i. My boss signed the form, but then mentioned to the Accountant (car buff), that I wanted one of those little people-carrier things – confusing Meriva with Monaro…
Hadn’t thought of the XJR; quite like the XF’s, but I’m too tight to spend the current £20k I’d need to.