A toy vehicle for a guided motor-racing circuit has a guiding groove and conductor rails adjacent thereto. A keel pivotably mounted on the vehicle engages the guiding groove to aid vehicle guidance. A magnetic device magnetically interacts with the conductor rails to provide additional retaining force for holding the toy vehicle on the track. One end of a rocker is pivotably fixed to the vehicle. The magnetic device is positioned on the rocker at a distance from the pivotable connection. If the vehicle moves off course by pivoting along its longitudinal axis about the keel, the rocker pivots in an opposite manner relative to the vehicle, so the magnetic device remains on the circuit adjacent the rails such that even if the toy vehicle moves off course, a magnetic force of attraction remains between the magnetic device and the conductor rails.