My overall rating = 5.5. It was boring because most of them drove like pantywaisted points racers, because that is exactly what they were doing. Blame it on the championship format, because most had little incentive to go for it, and every incentive to "cruise and collect." And fate robbed us of a battle between the 1, 3, and 42, which might have redeemed it some.
Dover is a great venue, and the cars with current aero rules are well matched to the track. It is fast, difficult, grueling, and unforgiving. The cars are able to race close, and a quicker car is able to pass. And the long green runs and lack of race manipulation is a big plus too. So the drivers get a 3.0 and the rest of it bumps it up to 5.5.