I have a list of options on the car which include 2110 engine, dual 44mm IDF Weber carb., full flow oil cooler with power fan and automatic temp switch.....
Louisa: the full flow oil cooler helps cool the oil which "theoretically" helps keep the engine cooler than otherwise. My IM6 for instance has 2 remote oil coolers, each with a fan at the front of the car, to HELP keep the oil cool which HELPS, along with AIR, to keep motor cool....essentially protect it from overheating and destruction. My car AND the very nice IM Roadster that you are considering are largely AIR COOLED, helped a bit by the remote oil coolers.
As ALAN, a very knowledgeable gentleman, suggested above, the car is AIR COOLED but the oil coolers help a bit by cooling the oil.....keeping oil temps in a quality range.