Daimler is not a car brand (anymore) - not a German one, at least (there is/was an English Daimler, though). Daimler was the name of the person who founded what is now the Mercedes brand, and he sold his cars under his own name at first. After a car named "Mercedes" (a Spanish girls name) won a race, every paper referred to it as a "Mercedes" instead of the proper make, "Daimler". For marketing reasons, Daimler promptly named all of his cars Mercedes and after the merger with Benz this became Mercedes-Benz (though again the name Mercedes was the one that stuck). The company was still named Daimler though, then Daimler-Benz and much, much later Daimler-Chrysler. The Benz family wasn't happy their name was dropped from the company, and now it's called Daimler AG after Chrysler was cut loose again. The cars continue to be named Mercedes-Benz, though, with the obvious exception of the Smart brand.
Yes you're quite right, it seemed a bit odd that's all, normally McLaren people go out of their way to promote the Mercedes brand, kers etc., I can't remember them mentioning Daimler before.
