The car that the person is building will be in their garage in order to give them elbow grease you have to click on the car you wish to give elbow grease. The only exception to this rule is Police Charger that you have to complete in order to finish the Dom's Charger Challenge. I still have not figured out how to give someone elbow grease if it is in the other person's hideout.
The maroon Greased Lightning was a heavily modified (Plexiglass hood, giant tail fins, chopped front fenders) 1948 Ford Convertible. The white Greased Lightning used in the race was a 1948 Ford De Luxe Convertible. The black car the Scorpions drove was a 1949 Mercury Custom. The Pink Ladies car was a Studebaker Commander. The maroon car that Danny and Sandy took to the drive-in movie was a 1949 Dodge Wayfarer Convertible.
Disappointing as it may be, nothing much. There's too much metal in the car. When the lightning strikes, the charge is evenly displaced across the car, preventing any damage that may have occurred. You can google images of cars being struck by lightning. If you'll notice, the interior of the car is completely unblemished from the lightning.
When it comes to lightning anything is possible, but it is highly unlikely. Lightning can for sure strike a car but as long as you are not touching any metal part of the car you are safe. Lighting will take the shortest path to ground and that is always metal not glass. I have never heard of lightning even breaking a sunroof. But with mother nature and the power of a lightning bolt anything is…