I understand the latest Ford gearboxes in the Duratec +4 are quite slick, but I've not been able to try my pal's car yet. Maybe I should test drive a 'newish' +4 at Williams on Saturday.
I know the old Rover LT77 / R380s are slow - having used both in Land Rover products (and still have LT77 in the 90).

Cheers,

Graham (G4FUJ)

Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW