Buyers of new Porsches spend an average of £7,121 on optional extras, the highest in the market according to Cap HPI.
Data from Cap HPI's Spec Check service reveals that Porsche buyers spend the same on extras as a brand new Dacia Sandero.
Spec check is designed to help dealers value vehicles more accurately by detailing the exact options that were factory fitted to the individual vehicle.
Cap HPI says by providing access to the precise specification of the car, dealers can minimise the risk of undervaluing part exchanges and missing out on sales.
After Porsche buyers, drivers splashing out on a new BMW spend the most, with on average £3,584 invested in extras. Audi vehicles typically have £3,111 spent by new owners on top of the original price of the car, and for a Mercedes-Benz, the average optional extras are £3,050.
The study of completed options checks also reveals it’s not just luxury car buyers who are tempted by the contents of the options list. The Mini has an average spend on extras of more than £3,182 and Volkswagens are fitted with just under £1,000 worth of optional extras on top of the standard specifications. Fiat owners spend an average of £376 on optional extras.
Chris Wright, managing director of Cap HPI, said: “As vehicle technology becomes increasingly more sophisticated, having the right equipment on a car is more important than ever in helping to maximise retail desirability."