The Best Racing Game for Linux has been released with new features and new adventures.
SuperTuxKart is a Free 3d kart racing game. It’s more about being fun than being realistic. You can play with up to 4 friends on one PC, racing against each other or just try to beat the computer.
 
This release contains two completely new designed high-quality tracks.
Grand Paradiso Island –a beautiful tropical island famous for it’s sandy beaches and the Princess Sara TransContinental Airport with spectacular landings:

Cocoa temple – a track in Val Verde, a south American country with ancient pyramids and massive jungles.

 
 
Video Trailer:

Highlights of the 0.9 release:

• Fully shader-based rendering engine
  •  New tracks Cocoa Temple and Gran Paradiso
  • Graphical improvements to many other tracks
  • New karts Amanda, Gavroche, Sara (as wizard and racer)
  • Improved tux, adiumy, Suzanne and Xue.
• Online login which allows to:
  • connect with friends and see when they are playing
  • vote for addons
  • collect online achievements
• Different kart physics
• In-game Grand Prix editor
• Random Grand Prix generation
• Achievement system

 
Download Now: Super Tux Kart
Source: http://supertuxkart.sourceforge.net/