Video: F1 vs IndyCar comparison at COTA

Going wide at Turn 19

It's not that often we get to see IndyCar visit a contemporary Formula 1 circuit, but that happened last weekend when the series hosted a race at Austin's Circuit of the Americas at the first time. Autosport's Tom Errington and Ben Anderson join Glenn Freeman to discuss how the speed of the two championships compares, how much that really matters, the quality of the racing we saw and IndyCar's surprising approach to the thorny issue of track limits – which is always a major talking point whenever F1 visits the US venue.