Episode four finally emerges after being lost inside a five billion GB hard drive. News covers Aston Martin's current financial crisis and what Mercedes is doing to help, after which we cover the Top 25 Automotive Innovations, including the cars they debuted on and the creative companies behind them.  Ever wonder when disc brakes were invented? Or carbon fiber monocoques? You'll soon know... P.S. We're finally on Apple and Google Podcasts!