Best-selling racing videogame
Who
Mario Kart Wii (Nintendo, 2008)
Where
Not Applicable
When

No individual racing videogame has ever sold more than 2008's Mario Kart Wii. As of 11 April 2016, it had amassed sales of 35.76 million copies. As of the same date, it was also the third best-selling game of all time.

As another testament to the enduring appeal of the Mario Kart franchise as a whole, the second-placed all-time racing game top-seller was Mario Kart DS, with lifetime sales of 23.39 million units. As of the same date, Mario Kart DS was the 12th best-selling game of all time.