Fiat is re-launching the iconic Alfa Romeo brand with the new mid-engined, rear-drive Alfa 4C compact sports car. The stunning new lightweight model, seen here officially for the first time ahead of its Geneva motor show reveal next month, will be the first of a range of new Alfas over the next few years, and will spearhead the Italian firm's return to the US market.The production two-seater 4C coupe, complete with its carbonfibre chassis, returns to the Geneva show two years after a concept of the same name was introduced.Power for the new sub-1000kg model, which is tipped to cost less than £50,000 when it launches in the UK at the end of the year, comes from an all-aluminium turbocharged ...