At launch racing game Forza Motorsport 6 did not offer any microtransactions, rather surprisingly seeing as the previous game had them. At the time developer Turn 10 said they would only include it if the fans "asked for it", and now apparently they have done so.
We haven't seen these request ourselves, but nonetheless you can now buy tokens in-game (and on xbox.com), for use in place of in-game cash. The pricing for these tokens goes as follows:
• 100 Tokens - £0,79 / €0,99
• 325 Tokens - £2.39 / €2,99
• 575 Tokens - £3.99 / €4,99
• 1,250 Tokens - £7.99 / €9,99
• 2,700 Tokens - £15.99 / €19,99
• 8,000 Tokens - £39.99 / €49,99
• 20,000 Tokens - £64.99 / €99,99
There is an option to hide the microtransactions within the game's settings.