M6 gran coupe price check please

[turboman786]

I've been offered an m6 gran coupe as follows

13 reg
40k miles
1 owner
Silverstone with black leather
Still under warranty and fbmwsh
Car is as new condition wise

It's a private sale and it's difficult to gauge price as most are within the AUC network where prices are obviously kept strong by the dealers

What's a sensible price for this car in a private sale? Spec wise it's pretty standard

[turboman786]

£43.5 looks very cheap for the car above....did it sell?

The cheapest auc car is £55k albeit with very low miles...

Perhaps I should make a cheeky bid of 43k....although I anticipate the seller will be wanting closer to 50k!