On April 11, 2011 automotive magazine Autocar reported that Audi has made the 4.2-litre FSI V8 engine available on the R8 Spyder, alongside the 5.2-litre V10 engine initially fitted. The 434 PS (319 kW; 428 hp) (an increase of 14 PS as compared to the coupé), 430 N⋅m (317 lbf⋅ft) unit now completed the R8 Spyder range alongside the V10 Spyder offered. The V8 Spyder has a 0–100 km/h (0–62 mph) acceleration time of 4.8 seconds and could attain a top speed of 300 km/h (186 mph). Like the V10 model, the V8 Spyder features an aluminium spaceframe with carbon composite construction and an automatic retractable folding cloth roof.