I spent about a year looking for a GTI performance pack and found pricing hard to get my head around some times. Generally, strong money is being asked by both trade and private sellers (and it went mental after the end of the first lockdown) I rarely found a car that was priced in line with what the price gauge sites thought was about right.
Example
https://www.autotrader.co.uk/car-details/202101017560052Autotrader private guide is £13,200
px is 11,800
VW part ex is 11,900 (good condition)
WBAC 12,315
Private seller wants 16,000. That's high, and you'd argue that's why it's been on the market for two months, but you don't have to look far through the ads to find similar cars up privately for around 2,000 more than the estimates.
So is the GTI pp undervalued by estimates, or overvalued by sellers? I'd imagine there are some decent margins there if you're a dealer taking one in as px.
From a dealer, Red, performance pack, 65 plate, 36k mileage, sunroof, 5dr, vw service history, manual gearbox
I think it'd be rare to find this at a dealer, especially VW, for less than 16 grand.