Infiniti M 2nd Gen

The second-generation Infiniti M, internally known as the Y50, debuted for the 2006 model year. It represented a major step up from its predecessor, offering a stylish design on Nissan's FM platform, shared with the G35 and 350Z. Buyers could choose between the M35 with a 3.5L V6 or the M45 with a powerful 4.5L V8 producing 325 horsepower. The M45 Sport, with its rear-active steering and firmer suspension, was the clear enthusiast's choice.

These cars have largely flown under the radar of most collectors, which is great news for buyers looking for performance on a budget. The M45 in particular offers a classic rear-wheel-drive, V8-powered sedan experience that's increasingly rare. Their advanced electronics for the era, like intelligent cruise control and lane departure warning, can be expensive to fix, so well-maintained cars are worth a premium.

With an average sale price around $11,540, the Y50 M-series is a highly depreciated asset. The market differentiates little between the M35 and M45, focusing more on condition and mileage. Low-mileage, one-owner M45 Sport models command the highest prices, but the entire range represents a significant value proposition.

Prices for the second-generation M range from $6,700 for daily drivers to $21,000 for top-spec M45 Sport examples.