Powertrain Ltd, part of Phoenix Venture Holdings and supplier of engines and gearboxes to MG Rover Group, has announced a pilot programme to encourage taxi drivers in its home city of Birmingham, in the English Midlands, to reduce exhaust emissions. In cooperation with Birmingham City Council and as part of 'Don't Choke Britain Events', the company handed over the keys of the first cab to Ruth Watts, secretary of the Birmingham Taxi Cooperative.