Forbes’ Top 10 Most Expensive Cars of 2012 Published on September 17, 2012 in Top 10 by Gilles Olivier Photo: Pagani Automobili 7 - Pagani Huayra ($1.3 million). Dubbed by many as the “Other Italian Car,” this little wonder is powered by an AMG 6.0-litre twin-turbo V12 that delivers 700 horsepower. It can go from 0 to 100 km/h in 3.5 seconds.