I think you could be right re 3 litre but sure they had a name but it escapes me.
https://en.m.wikipedia.org/wiki/Austin_3-Litre
I would have thought it was quite a rarity and looking at the way it was parked it needs it's hydrolastic suspension doing as it had quite a lean
I've perhaps relared this before but...
Early 1980s maybe, we had a production supervisor with a (I think) Wolsley 1300 with hydrolastic suspension. I was a banger, well past it's best and had that characteristic lean.
One night shift he brought it to our workshops and asked if there was anything 'we' could do.
Bear in mind none of the engineers had car experience but they quickly decided to top.up point was a schraeder valve....so let's put some air in it ?
I'm only perhaps 20, very much the junior member there and I said....errr, I think that's oil that's.meant to go in there !!!
But no, they wouldn't have it, tried air, the lean got worse.
Ok, so if we jack the car up, it will relieve the pressure on the suspension and try again.
I'm stood back now watching the 'fun'
As they used a wider set of forklift forks to raise the car, the sills were so rusty they just collapsed ...I'm laughing inside as I remember this.
Various head scratching from the others...the poor supervisor drove it out, parked it in the carpark with a now massive lean...next stop was the scrapyard.
Being an 'engineer' doesn't necessarily make you clever....