Sportscar and Formula One racing manufacturer McLaren unveils its new Artura Spider in London claiming to be the lightest drop-top supercar on the market. Tipping the scales at a dry weight of 1,457 kg (3,205 lb.) the automaker claims this is a full 83 kg (182 lb.) less than its nearest rival. This has been achieved with the use of McLaren’s carbon fiber lightweight architecture (MCLA) and aluminum hot-formed body panels.