GR-UK writes: "One thing that Turn 10 and Microsoft snuck into Forza Motorsport 5 was micro-transactions, whereby you can spend money on Tokens and then use them to acquire cars in the game if you wanted to shortcut the career to snag the faster cars quicker.
You can buy packs of Tokens at the following prices: 100 is £0.79, 575 is £3.99, 1250 is £7.99, 2700 is £15.99, 8000 is £39.99 and 20,000 is £64.99, so with the 2700 Token pack that's one McLaren P1 for £13.82. The more Tokens you buy, the cheaper they are. If you bought the 20,000 pack (costing £64.99) the McLaren would cost just £7.58. From the same pricing, a Veyron Super Sport will set you back £13.00, and the most expensive car in the game, the Lotus E21 will cost an incredible £32.50.
The smaller the pack of Tokens, the more expensive they are, so the worst possible way of picking up the game's most expensive car would be to buy 100 of the 100 Token packs, bagging you the exclusive 10,000 Token Lotus E21 for a cool £79."