Both the Alfa Romeo 4C Coupe and soft-top Spider are genuine lightweights, thanks to the extensive use of carbon-fibre. It boosts the 4C’s power-to-weight ratio to the point where the 177kW/350Nm 1.7-litre turbocharged engine scoots from 0-100km/h in 4.5 seconds and on to a top speed of 257km/h. The NZ distributors, Fiat Chrysler, has sold 20 examples, made up of five Spiders and 15 Coupes. This video shows how the 4C is put together.