The list of drivers who looked exceptional in junior formulas and then wavered when they reached the top is a long one.Some get there and swiftly plateau, because they’re used to relying purely on driving talent and lack the industriousness for self-improvement. Others stay too long in backmarker or mid-grid...

The oldest is an Eagle from 1966. It was built 30 minutes down the road in Santa Ana, one of the first race cars made by Dan Gurney’s All American Racers, who also co-founded the Long Beach Grand Prix. It’s owned by Rob Dyson and will be driven by Formula...