"Fixes toString method in Car.java to pass test"
"Implements test case 'canDecelerate()'"
"Implements method 'decelerate()' to pass 'canDecelerate()' test case"
"Implements test case 'cannotDecelerateBelowZero'"
"Updates 'decelerate()' method in Car.java to pass
'cannotDecelerateBelowZero()' test case"