Not forgetting that Gardner was one of the 'Internationals'...

He'd buy a car for the Mildren team to enter and then use the following year. Or two.

In fact, from 1966 the special engines began as expanded now-defunct 1.5-litre units, I don't know what the Ferrari engine was but it was supposed at the time that it was a 1960 engine. Four valves per cylinder sort of knocks that idea on the head. So it was most likely an expanded F2 engine. Brabham's Repco engines, of course, were no trouble to put together because Repco were making them for entrants here, though it's clear that the engine was better suited to the 3-litre configuration than the 2.5. Remembering that this engine was also initially available in 4.4 litres and versions went out to five litres.

Of course time saw the visitors bringing out smaller versions of their 3 litre engines, BRM and Lotus with the Cosworth, one of which was also used by Piers Courage.

Geoff Sykes wasn't always happy with his relationship with Ron Frost. He saw him as dominating the driver choices when he was making approaches in Europe, but deferred because Frost had an annual trip over there at least partially funded by other interests (business etc).