You are wasting money and time and creating a potential de-lamination time bomb.
To paint that size of car like it is:
Get one quart of base of a good brand, or a gallon of a crap brand.
Then apply a flat clear and you are done.
The picture shows a 3-6% gloss witch is the same as cladding on all the new cars, so any major flattened clear will match dead nuts.
You cannot fly with eagles when you are fooling around with chickens, most painters learn this pretty quick as far as saving a buck.