The simple answer to this question is the Austin Princess,
But there are many lower levels of unglyness such as the Ford Scorpio (what were they thinking), the Vauxhall Senator (having a V6 did not even make it any cooler). one of those Ssang Yong 4x4 things (just what), the Chrystler Neon (fast but horrid) and the Toyota Pruis.
Then there's the obvious list of cool because they're ugly cars like the Rover SD1 (my favourite), the Austin Montego (the front headrests are fantastic), the Vauxhall Belmont (an astra with a bolted-on ugly bit) the Jaguar XJS (looks like a collective of 70s car bits) and the Ford Orion (doesn't like too bad if you turn around and shut your eyes).
Actually, I'd have to disagree with you a little on the Princess. I believe BL were going for the (near) future with the wedge. The Lotus Esprit, Elite & Eclat; TR7, Lagonda, Lancia Stratos and Delta, Lamborghini Countach and BMW M1 to name but a few were all of the wedge school of design. The wedge was admired for quite some time and the Lotus, Stratos, Countach & M1 are still (mostly) admired even today. Marcello Gandini, well known to FIATistas was responsible for many with his "Folded Paper concept.
Again, you have to look contemporaneously at the SD1. In comparison with what they'd produced before, their first modern car was really the P6
http://www.google.co.uk/search?q=ro...FFile%3ARover_P6_front_20070831.jpg;2061;1095
Their previous model was the P5 which saw service well into the early '80s as Ministerial and Prime Ministerial transport.
http://www.google.co.uk/imgres?q=ro...&w=600&h=444&ei=9kP1UcavJ9OS0AXo6YDQBw&zoom=1
So with the P5 & P6 in their past the SD1 was a revelation. Firstly a hatchback, secondly it came out with the 3.5 V8 as its only engine and thirdly it was conceived from the outset for export sales with the instrument pod changeable from side to side and an air vent conveniently located on the passenger side for the LHD steering column to be located in.
I'd agree with you on the Ssang Yong Musso, but even worse is their Odius model which appeared to take the Dorma Bungalow concept for its inspiration. The Belmont was a pretty drab take on the drabbest Astra ever made.
As for the Chrysler Neon, I think we got two versions here, both 2.0 litres but one had a 4 speed automatic with 150 bhp which doesn't really sound that fast. Although I really did like the whole Chrysler "cab forward" thing as seen in quite a few other models, my favourite being the Sebring.
http://www.google.co.uk/search?q=ch...ler-sebring-convertible-photo-207910;1280;782
The Senator will always have a special place in my heart, but more for the back seat shenanigans with my milf college tutor back in the day. V6 was fast too, but I only experienced it as a passenger because I couldn't drive back then. Shame really
Oh, and the Senator had a straight 6. 3 litre in two different states of tune in the Opel version and a 2.8 or 3 litre in the Vauxhall. A V6 didn't come along until the Omega appeared.
