Also, the ability of the player to customise their bikes is greatly increased. In Extreme mode the player can upgrade their bike with various performance modifications: carbon brakes, race exhausts, magnesium/carbon wheels etc. In Grand Prix mode, the customisation is limited to visual upgrades, though "MotoGP'07" now allows players greater control over the appearance of their bike. Despite this, some players have complained that the visual modifications are still fairly restrictive - the main criticism is that the custom paintwork option still restricts the player to the same limited amount of customisation as the previous games, despite the fact that the overall visual modification option has been overhauled. This leaves the player unable to design or customise the paint on their bike to approximate the level of design detail achieved by other AI racers.. Whether this issue will be resolved in future patches is not known.