The car analogy comes from a calculation for a small single engine airplane or light sport aircraft in the $50,000 range. Using an aircraft loan calculator such as this one from AOPA, we find that you can expect to pay around $400 per month for a 20-year loan with 6.5 percent interest.
Overall, red onions contain a higher amount of antioxidant compounds. They are higher in total flavonoids than white onions and yellow onions are considered to be in the middle. Red onions contain 415 to 1917 mg of flavonols compared to yellow ones, which only contain 270 to 1187 mg.
I do not like RAW onions and even the purple sweet onions are too strong for me! The Vadalia onions are not quite as strong as the purlpe onions. Green onions have a less strong flavor but, for me, the white part of the green onion is even too strong. Once cooked I love all onions but the raw ones I totally avoid.