On behalf of Atari Europe
We have identified the source of the problem which has led to unexpected cars appearing and progression being lost.
In order to resolve this, the E-trade system has been temporarily deactivated. You cannot currently trade vehicles with other players, although you can still sell your vehicles via the direct selling option.
The problem is being dealt with as a priority and we will let you know as soon as the E-trade system is operational again.
Sorry for any inconvenience caused.
Taken this from Atari forums.
Reason this was done because people were reporting problems which a CBR 600 seemed to appear as name on vehicle this in turn locked out game and people lost there game. :/
There quite a lot of bugs but im sure it was to be expected on the scale of the game cant say effected me much so far really.
But there all the same filters etc on atari feedback thread what devs of game will read so hopefully be fixed.