I liked it, although there are alot of gaps in the movement of the characters in the film and plot lines.
Correct in talking about the rally car not having a driver. Also during the rescan sequences there was no one in the cars/trucks. When BB rescanned and a profile shot of his new mode was shown there was nothing in the car. Next shot was BF and GF sitting in the drivers seat.
Lockdown was superb and WTF with the sudden jet boots on Optimus?
So glad they killed of the clown in the first part of the movie. I don't think i could have put up with his silliness.

I'm really looking forward to a heritage story of the TF in the next film to explain the makers wanting Prime back etc.