Here is the list of British and European cars compatible with Champion Spark Plug FI21511 and FI21511 Champion Spark Plugs Standard:

- Alfa Romeo Giulia 1962-1968
- Alfa Romeo Giulietta 1954-1965
- Aston Martin DB4 1958-1963
- Aston Martin DB5 1963-1965
- Austin-Healey 100 1953-1956
- Austin-Healey 3000 1959-1967
- Bentley S-Series 1955-1962
- Bentley T-Series 1965-1975
- BMW 2002 1968-1976
- Ferrari 250 GT 1958-1960
- Ferrari 275 GTB 1964-1966
- Jaguar E-Type 1961-1974
- Jaguar MK II 1959-1967
- Lotus Elan 1962-1973
- MG MGA 1955-1962
- MG MGB 1963-1980
- Mini Cooper 1961-1971
- Porsche 356 1950-1965
- Porsche 911 1963-1973
- Rolls-Royce Silver Cloud 1955-1966
- Rolls-Royce Silver Shadow 1965-1980
- Triumph Spitfire 1962-1980
- Triumph TR6 1969-1976
- Volkswagen Beetle 1946-1979
- Volkswagen Karmann Ghia 1955-1974

Note: This list is not exhaustive and compatibility may vary based on engine and other factors. It is always best to consult with a mechanic or refer to the manufacturer's specifications for accurate compatibility information.

- OEM part number: 21511
- Equivalent part numbers: 758, 100, 100-1, 100-3, 100-4, 100-5, 100-6, 100-7, 100-8, 100-9, 100-10, 100-11, 100-12, 100-13, 100-14, 100-15, 100-16, 100-17, 100-18, 100-19, 100-2, 100-20, 100-21, 100-22, 100-23, 100-24, 100-25, 100-26, 100-27, 100-28, 100-29, 100-30, 100-31, 100-32, 100-33, 100-34, 100-35, 100-36, 100-37, 100-38, 100-39, 100-40, 100-41, 100-42, 100-43, 100-44, 100-45, 100-46, 100-47,

Standard shipping with tracking via Royal Mail or Evri for heavier parts:
- £4.99 per order for standard 2-day delivery
- £5.99 per order for Next Day delivery

Most orders are shipped the same business day if ordered before 2pm. We ship Monday through Friday.

If we unexpectedly run out of stock we may have to order your part which can take up to 1 week. We will be in touch in the rare circumstance that there is a delay to your shipment.

We want you to be completely happy with your purchase but please do not hesitate to contact us immediately if you have a problem with your order. Please ensure that you consider all the points described on our profile page accessible by clicking our name above the product title.

It is especially important that you take due care to ensure that the part you selected is compatible with your car. If in doubt, we'd prefer that you get in touch via our profile page so we can help you.