In bobsled and skeleton competitions.
It emerges that McLaren, with two employees actually at the Sochi games, has been helping the British national team with Lizzy Yarnold's 'skeleton' sled, on which she slid to gold last Friday.
Referring to the rivalry, McLaren Applied Technologies' Carolina Hargrove told Reuters: "We like that. It's part of how we are.
"Everyone working here is seriously competitive and the same on their (Ferrari's) side. So it adds another element to it, which is quite fun. It's not more than fun," she added.