Seems like a very good deal Owen.
Yes the market is fragile but with the cut in production levels that most if not all manufacturers are implementing I'm not so sure you will find a better deal at the mo on that model as there will be less dealer stock to discount.
The dealer might need to shift that particular model PDQ if they have it as an in stock car as the payment to Nissan might be due and they will wan't the readies rather than paying out from their own ever depleting finances.
Check the build date of the car if you can, Tho it's not that important at that price
If your happy after the test drive try twisting the dealers arm for a free first service and anything else you can think of
A bonus that your motor is not a pre reg as that will help any future values and if the car is written off in the first year the insurance pay out on the new price which with a pre reg they treat the motor as used
Defo a buyers market at the mo more so for new reg motors.
Enjoy your 3 hours Owen