The two new 1/8th cars are
PB-2, the second car PB Racing made. The red body and the two new bodies are all PB. The stock car (red/yellow body) is a Mardave Stock Car.
The small F1 car is a Mardave, the batteries mounted in two sticks down either side of the chassis which is why there is old tape on there. The Porsche is a Lectricar, there should be a U shaped top to the radio box.