I got told 80ml was enough for two coats. ..It was my first time with the product, I was in poor light, in a rush against changing weather and I used about 60ml for one coating on a Honda Civic, including grill and wheels, not windows.
If I was using it for a second time and not rushing, 80ml may be enough for this size of car.
For the next week, the gloss was phenomenal, a real satisfaction for the results of the effort involved. This is an 11 year old Honda Civic that has spent a big chunk of its life without sun cover and I was getting brand new car owners and the shiny new Mercedes snobs appreciating the gloss. ..It was turning alot of heads.
Racing against the weather, I only got one coat on and after its first wash with a gentle shampoo, that over the top gloss dulled down and now the paint (at 2 meters ;) ) looks like a brand new car out of the showroom.
Just to note, In the poor light, I missed buffing an area the size of a tennis ball and now that flash colour is there until the coatings gone, not a drama as luck would have it, its low down on the bumper.
If your a newbie to this. Take your time to make sure everywhere is buffed before moving onto the next panel. Once you get your rhythm going, depending on the weather, you maybe be able to work ahead on the next panel whilst waiting for the previous to flash. Motor on with caution though..
Tip: Also ceramic coat your number plates. If you don't, your bright shiny shines machine car makes the number plates look scabby as all hell :D
My only complaint is that I think it needs 7 white pads not 5. Near the end the pads were getting stiff to the point that I was concerned it could mar the paint. They didn't mar it, but for the cost of 2 more pads in the box guys, customer confidence is everything.
Now I got some of the coating left, I'm thinking what else can be ceramic coated :D
..glass shower door in the bathroom, then probably phone screens and maybe try a house window or two.