1986 bentley turbo, would purchasing this car for $1500 worth buying to fix up.as a daily runner-round?

I know fuel is cheaper in USA but are you up for around 10 miles per gallon ? And any spare parts you do need are going to be very very expensive for example a new turbocharger is going to be close to $1000.00

The equivalent new car costs about $300,000.

The servicing an maintenance of this car will cost a similar amount as it would on that $300,000 new car. If you can afford that, by all means buy it. But don't expect to be able to run it for the same money as a $1500 Ford or Chevrolet.

Only if you have time and money. The only place where you can get parts from is eBay. I doubt Bentley has replacement parts for that car since they didn't make a lot of them. British cars are also unreliable.

If classic luxury is your thing, you'll have more luck with a 300D Mercedes. I've seen more parts for those and the engine is indestructible, Ive seen one with 550,000 miles with a showroom body and the guy uses it as his daily driver

As an auto appraiser I once looked at an older Jaguar that had been vandalized. Someone poured a foreign substance into the gas tank. It took them almost three years to find a replacement carburetor and had to have it shipped from England. They are beautiful cars but be prepared to spend a fortune even on routine parts and maintenance. car-part.com is a good place to look for parts if you need them...

This is a Never Never car its never going to be cheap to restore nor will it ever be cheap to use as a run-arounds