Look for an Alpine for the classic Sunbeam roadster. The most popular model (and the one that found its way to the United States) was built from 1959 to 1968.
Step2
Consider a Tiger if you want a British hot rod. This is essentially an Alpine with a Ford V-8. This car was built from 1964 to 1967.
Step3
Look for an Alpine Lemans if you want the Alpine in coupe form. This car was built from 1962 to 1963.
Tips & Warnings
Be sure to find a mechanic who specializes in British cars.
Sunbeams are pretty rare, so finding parts will be tricky.