I confess to having owned a Cavalier estate and a Nova in my time, and I passed my test in 1968 in my dad's boxy little Viva saloon. Unloveable friends I suppose. At least when my cam belt broke on the Nova it transpired that the car had a "safe engine" which saved me a quid or hundred.
Now what was that old joke...
What's the difference between a hedgehog and a Volvo estate?