(Note: This question has been put previousy a few years ago, but heyho we've probably got a different population here since it was last done.)
Mine was a Fiat 500 (499.5cc, not the modern version). It was pale blue. Here is a picture taken in 1966, my young step-brother and friend inside, Fido in front. Scanned from transparency, hence the blemish on the bonnet which is not on the car but comes from the transparency.
I hit enter too soon, I was saying circa 1950 ish, metallic bronze, number plate was something like RPL xxx ?
Leather bench seats front and back, and a walnut dashboard and picnic table on the back sill which you could remove and fasten onto the back of the front seat.
A silver Renault 5 Le Car. I loved it. I booted that thing all over London. Even when the gear box started to go a bit dodgy, the mechanic next door got a strong elastic band and fixed it for me. Lord knows how, but it lasted for another year or so. I have very fond memories of that car. Thank you for reminding me.
A red Ford Escort that I bought from my sister who tried to charge me more because it had a new tyre. I remember driving it for the first time and Pressure On by Spandau Ballet came on the radio and I whacked the sound up - that's when I realised the stereo was better than the car.
Ford Anglia (before they got that backward-sloping rear window). It was pale bluish, and got us down to Marseille in c 1964. It had a bonnet and a boot, so you couldn't tell which way was pointing forward. Half-way down France it blew a radiator hose outside a police station in Paris. We managed to trace a spare 'tuyau' and then the local cops let us into the station to fetch bottles of water to top up the rad. We had to pass the cage for the night's drunks and ne'er do wells and down a row of cells to reach the tap.
Later on the trip, we picked up some hitch-hikers and then had a puncture; we had no jack, so I got the passengers to hold up the car while I mentally changed the tyre. They seemed capable of holding it up quite well, so I said "Excellent! Now, let's do it for real." It worked.
Drove other cars before it but the first car that was mine was a Rover 90(P4 I think). It was a chocolate brown and cream two tone with bench front seat (some had two front seats) that had a drop-down arm rest. I did a week's work for a coalman who had a bad back when I was 17/18 years old. On the Friday he could not pay me. I told him money in my hand or his motor, or I was getting serious. He gave me the keys. I drove it all over S.o.T. with passengers aplenty for a few months and sold it for about £40. It was tremendous thing and would pull up Etruria bank in top with about 8 of us in it. I wish I had it now. Happy daze. I got my driving licence 2 years later when I move to Wales where for some reason it was a requirement to drive.