It's not the greatest F1 game ever made. But it looks beautiful and I actually really enjoyed it.

I've had a look around the various regions and

Russia is £8.99
Colombia is £9.05
Brazil is £9.61
and
Korea is £7.99.

Fly like a champion in F1 2015; Live the experience of riding in the most glamorous motorsport, exciting and prestigious in the world. F1 2015 puts you in the center of the action, thanks to an amazing new mechanism that recreates the breakneck speed and high responsiveness of FORMULA 1 ™ cars, including a new "broadcasting" that immerses you in the unique atmosphere of the races. F1 2015 is the official video game CHAMPIONSHIP FORMULA 1 WORLD FIA 2015 ™ and also features bonus content available CHAMPIONSHIP FORMULA 1 WORLD FIA 2014 ™. Pilote on the skin of your favorite star of Formula 1 in the new Championship Season and exceed its limits in challenging Pro Season mode. Practice your skills in the new Online Practice Session and challenge friends and rivals from around the world in Online Multiplayer.

If nothing else, F1 2015 has definitely held it's price well since it's release last July.