way of independent trailing arms, adjustable Öhlins spring/damper units and an anti-roll bar. The front wheel is suspended by a leading four bar linkage with a single Öhlins spring/damper unit and uses a hub-centric steering system. A single track-rod transmits steer inputs to the front wheel from the output arm of a worm-gear steering box, the driver's steer inputs are transmitted to the steering box via a modified wheel and column sourced from a BMW car. Tilting system CLEVER employs an electronically controlled and hydraulically actuated Direct Tilt Control system with a maximum tilt angle of ±45° [6]. A pair of single acting hydraulic actuators generate a tilting moment about the tilt bearing (which joins the cabin and rear module). The tilt controller uses driver's steer input and the vehicle's speed to estimate the lateral acceleration and hence the appropriate tilt angle. The DTC system provides excellent stability at low speeds but during vigorous manoeuvres at higher speeds the system's torque output exceeds that which can be reacted by the non-tilting rear module; as a result the inside rear wheel lifts, this can lead to the vehicle rolling over. To improve the roll stability in transient conditions, the prototype CLEVER vehicle was fitted with an active steering system in 2012; this allowed the use of a combined Steering Direct Tilt Control (SDTC) strategy. The active steering system output is a function of the vehicle's tilt angle error (the difference between the actual and ideal tilt angle), therefore at steady state when there is little or no tilt angle error the front wheel steer angle matches the driver's steer demand. However, in transient situations, such as upon turn-in, a tilt angle error exists and the active steering system acts to reduce or eliminate the driver's steering input. In extreme conditions it will also initiate a countersteering action whereby the front wheel momentarily steers in the opposite direction to that intended by the driver. As the cabin approaches the desired tilt angle, the magnitude of the tilt angle error is reduced and the front wheel steer angle takes on the value demanded by the driver. By reducing the severity of the driver's steer inputs, or indeed initiating countersteer, the active steering system delays the onset of lateral acceleration and reduces the moment necessary for the DTC actuators to tilt the cabin of the vehicle into the corner. This reduced tilting moment benefits