The rules on number plates have changed. You can display them on cars newer than originally allowed. But not everything qualifies, you could get into trouble and end up with
You can substitute DOT standards of brake fluid, but only upwards to be safe. Don’t use Silicone DOT 5 with anti-lock brakes, ABS, or mix it with other types. Want
When does a car become a classic? This is a wide ranging question. Is it just the age, rarity, desirability or the value of a vehicle which guarantees it classic