ELSPA reports that Wii Fit and Mario Kart Wii have each sold over a million units in the UK.
After continued strong sales this year, Nintendo's two Wii titles have had a steady stream of sales and finally reached Diamond status. Other Diamond titles include GTA 3, Vice City and San Andreas for PS2, Simpsons Hit and Run for PS2, Nintendo's Brain training, More Brain Training for DS, alongside Mario & Sonic at the Olympic Games and Wii Play for Wii.
ELSPA also notes that Professor Layton has reached the 100,000 mark.