1954 Kieft 1500 Le Mans, also referred to as the Kieft MG because it was powered by the 1466cc XPEG found in the MG TF.
Edit: Fantastic wheels on those Kiefts, though "rims" more actually be more appropriate in this instance than as the word is often used, because the wheels are actually just the lighter colored metal hoops bolted to the rather substantial drum brakes that appear in a darker color.