2005-2017 Aston Martin V8 Vantage
The baby Aston has consistently outperformed the trend in year-over-year value growth. And it appeals to the young, with quotes up 50% among millennials. The fact that its replacement was turbocharged may be helping buyers appreciate the older model, too.
A unit in #2 condition (excellent but not perfect) is estimated by Hagerty at $45,000–$52,500 USD.