Mario Kart 8, Nintendo's latest entry in the long running Kart series has become the Wii U's fastest selling game in the console's history, the company announced today.

The game has gone on to sell more than 1.2 million copies since its May 29th launch in Japan and May 31st worldwide launch, topping the charts across a number of countries including the UK where it came second only to Ubisoft's Watch Dogs. Not only has it topped sales, but Mario Kart 8 is also spurring console sales with UK retailers reporting a whopping 666% increase in sales thanks to the racer title.

"The early response to Mario Kart 8 demonstrates that the best days for Wii U are still ahead," Reggie Fils-Aime, Nintendo of America president and COO, said. "This year's E3 is just days away, and it will be all about the future games for Nintendo platforms."

How has your experience been so far with Mario Kart 8? Let us know in the comments!