Does anyone else feel swindled?
...or lied to? Foyle needs a driver at the beginning of the series, so they give him Sam. When Milner and his wife need a quick trip to the hospital, Foyle drives them there expertly, and says that he never said he couldn't drive, he just didn't like to. After that we see him driving almost constantly -- in London traffic, no less -- without a problem, after having spent the war years either walking or being driven. Not even remotely credible.
On top of that, Foyle is anything but a prima donna who needs to have special treatment if he can get by on his own, so the whole "needing a driver" gambit just seemed fake -- a means to get Sam into the story as a character. Piffle.