Something that will retain its value - rare and sought after. It might cost more to get into, but true ownership cost over 2-3 years will be a lot lower.
Recommendations if you don't want too much capital tied up: £40-50k Porsche 911 (997 Gen 2) Future classic, hydraulic steering, naturally aspirated, engine without the bore scoring issue. Driver's car. £50-60k Lexus LC500. V8 sound, Gearbox and Electronic Steering make this a luxury GT not a driver's car. These have luxury interiors and are rare and reliable. £70-80k Aston Martin Vanquish Gen 2. V12 Soundtrack, Stunning looks, but maintenance likely higher. All of these cars offer something different, but still show class, wealth and should re-sell near purchase cost.