The daily transport for Taoiseach (Prime Minister) Micheál Martin is a blue 2019 Lexus LS hybrid, which replaced the 2017 BMW 7 Series, a 3.0 litre diesel, that was used by Leo Varadkar. Enda Kenny, when he was Taoiseach, was driven in a 2014 BMW 7 Series with a 3.0 litre Diesel engine, or a dark coloured 2013 Audi A6 3.0 TDI Quattro model with 242 BHP. Previously, Enda Kenny was driven in a 2006 Mercedes-Benz S-Class, which was also the state car for previous taoisigh Brian Cowen and Bertie Ahern. The taoiseach is driven by specially trained and armed members of the Garda Special Detective Unit (SDU). The car the Taoiseach travels in is always accompanied by a follow car, usually an identical Audi A6 or BMW 7 Series, or an unmarked BMW 5 Series (2.5 petrol), containing armed close protection officers from the SDU and staff/minders. The taoiseach's car is usually escorted by motorcycle outriders from the Garda Traffic Corps, and further marked and unmarked patrol cars are added to the escort when the taoiseach is attending sensitive events or during times of a heightened security risk. The Tánaiste (Deputy Prime Minister) usually travels in a similar Audi A6.