Several of the Renault 5 Turbos also had another attribute which earned them their "widowmaker" reputation.
I forget the precise reasoning, but they would fuel starve on a hot day if the vehicle came to a standstill and the flow of cooling air was interrupted... -was it a sticking carb chamber float valve, I wonder? -I wish I could remember the precise details but basically, if you drove the car in a spirited manner to build up the underhood temperatures (this is a turbo, after all!) then held the vehicle stationary for 30-60 seconds, for the heat to build up, then suddenly demanded lots of fuel, it would use up the fuel in the float chamber, and then stop dead.
-Emphasis on the "dead", for several people.
The worst thing that you could do would be to take it for a spirited drive down a country lane in the summer, come to a complete stop at an intersection, and then decide that there was plenty of room for you to pull out in front of that large articulated lorry which is doing 70MPH towards you.
The car would indeed spring forward out of the side-road (using the fuel in the float chamber), and only when it was in front of the truck would the engine actually fail... Not BEFORE you moved off.
Apparently solvable with a heat-shield, which was later introduced if I recall correctly... but that car apparently filled a few coffins when the driver didn't in fact do anything "wrong".
Keith