IMSA: Top 10 cars of all-time

6. Nissan GTP ZX-Turbo

The Nissan GTP ZX-Turbo raced in the IMSA GT Championship from 1985 though 1990. It was commonly known as the GTP ZX-T, and it utilized its unique turbocharged engine to take the fight to the top teams in the series.

After having a slow first few years, battling mechanical failure and crashes that delayed its development, the Nissan GTP ZX-Turbo finally got its first win in 1987, and it started to hit its stride in the following seasons.

In 1988, the Nissan GTP ZX-Turbo won an incredible eight consecutive races. Although the Nissan team missed out on the constructor championship by one point, they were able to capture the driver championship that season.

In 1989, the Nissan GTP ZX-Turbo won 10 of the 13 races, and it easily won the constructor and driver championships. 1990 was the car’s final year, and it won one race that year before Eagle-Toyota became the new powerhouse team.

5. Porsche RS Spyder

The Porsche RS Spyder raced from 2005 through 2010 in the American Le Mans Series. The American Le Mans Series was created in 1999 and was sanctioned by IMSA.

Along with the teams that ran the Porsche RS Spyder in the American Le Mans Series, teams in the European Le Mans Series also ran this car. The car had success in both series, but it was more dominant in North America.

The Porsche RS Spyder won three constructor championships and three driver championships in a row in the American Le Mans Series from 2006 to 2008. The car also won both the constructor and driver championships in the European Le Mans Series in 2008.

Over the course of its six-year span, the Porsche RS Spyder entered 63 races and won 13 of them, including the 24 Hours of Le Mans twice and the 12 Hours of Sebring twice.