But rather than buy the vehicles for $1 million each, it has rented them for the meeting of world leaders at a cost of $1.8 million, or $112,500 a piece. The bombproof Benzes can withstand firepower from an AK47 assault rifle, are fitted with nail-proof tyres, and have their own on-board oxygen systems in case of a chemical weapon attack. For the full story please visit news.com.au