Serial 1 - syntax error in carArray

line 5 : lack of one comma.
Serial 2 - incorrect syntax

line 19 : bad use of commas.
Serial 3 -  incorrect comparator and car ages

Line 38 - chaging of sign = into ==
             - changing the number to 4 instead of 5
Serial 4 - incorrect purchaseRate and wrong variable value

line 49 : changing the purchaseRate from 1000 to 10,
line 50 : minusing value calculated from the purchasePrice
Serial 5 -  1000pound instead of 1,000 000 pound

line 71 : changing the string from 1000000 to 1000 pound.
Serial 6 - changing of formula

line 76 : more efficient and credible interest rate calc
Serial 7 - array carArray incorrect naming

Line 5 : Incorrect spelling of scr names (changed)
Serial 8 - overwriting of method of script.js

Line 6 : delete the fuction startTimer()