Austin Maxi's weren't that bad. Never liked the Allegro.
How about the Morris Marina in that yuk mustard yellow ?
BMC products in the UK were all made on Mondays and Fridays and were rubbish whichever day they were assembled...I'm reluctant to say built! Possibly the best Marina was the taxi used in Singapore and converted to a Nissan diesel which added about a 1000-fold reliability factor.
To be fair, BMC in it's various forms not only built bad cars in the UK, but in Australia too, where British Leyland [Australia] built such monstrosities as the Leyland P76 and an even worse version of the Morris Marina called the Austin Freeway which had a 6-cylinder engine.