Autoweek in review: Lamborghini Egoista, Maserati Quattroporte and Ecclestone's bribery charge

Tesla's impressive first-quarter sales topped the news Monday, as the Model S outsold the luxury competition. Racing veteran Derrick Walker was also named IndyCar's president of competition and operations. Tuesday, details surrounding the Acura NSX emerged, and we took a look at the Lamborghini Egoista.

Radical SR8LM Nurburgring Record

Radical SR8LM being prepared for its record-breaking Nurburgring lap. Yesterday we reported on the Nurburgring record claimed by Gumpert for the Apollo S, an extremely impressive 7:11.5. But we did mention – or rather said we’d better not mention – Radical’s time of 6:55 set a few years ago.

MPG or performance: It's a trade with turbos

Some automakers say turbochargers offer high fuel economy and quick acceleration, the best of both worlds. Well, yes and no. Turbocharged vehicles allow automakers to keep power output high while they downsize engines for better fuel economy.