Not that much, probably. Bentley owners/drivers/enthusiasts will buy the Bentley and Merc. o/d/e will go for the Maybach.
I think that's the first of your shots that shows why everything at the shows has to have a drip tray! Mind you, the white/grey car behind looks like it's bleeding a bit too.
I had the Vauxhall equivalent - A Firenza. Not the Droop Snoot version, just the coupé version of the HC Viva with the 2.3 litre engine. Went well until the radiator mount broke, dropping the radiator hose onto the bottom pulley causing a fatal loss of coolant! The chap who does my bike MOTs has a Firenza with a Rover V8 in it. Goes even better than mine did!!!
Never come across Rally as a car manufacturer before. Pretty little things. Guessing at British but that's purely based on both the posted examples being right hand drive.