I was given an extended (36hr) test drive in an ISF in 2010, but there was little follow up from the Sales Team. I bought one after 6 months of tracking the market...but from another Dealer.
In 2015, it happened again; same dealer, overnight test in an RC-F, no follow up, purchase 4 months later from another dealer.
Odd behaviour I think, though I have used the original dealer for servicing for 8 years; maybe that's where they see the value in me as a customer?
On both purchases there has been "no discount". That wasn't a surprise as I was hunting for months for the best deal so I was broadly happy with their sticker price. However, after some good haggling, I did receive £2,000+ more for my trade ins than Autotrader's online valuation