Our secret shoppers learn that when you buy a Cadillac or Lincoln, you get a gift!

You'd think that treating yourself to a shiny new $42,000 upscale sedan would be enough of a gift. But some car companies now give you a present at delivery—one that you pay for. So, do you want a black walnut presentation box or an iPad?

I recently took delivery of our 2013 Lincoln MKZ Hybrid. It was a surprise when the salesperson gave me a white cardboard box and told me to open it. He didn't know what it was and was genuinely curious. Going through several layers of packing material uncovered a shiny American black walnut presentation box, complete with the Lincoln logo inlaid in the lid.

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"Consider this the first of many nice surprises. Welcome to Lincoln," reads the small pamphlet inside. It appears that the salesguy was supposed to hand me the (unwrapped) box with the key fobs inside, as the box has little flocked cavities to hold the fobs and a shiny brushed stainless flash drive with the owner's manual. (You also get a paper manual.) Since I bought the first MKZ delivered by this dealer, I guess the ceremony wasn't exactly rehearsed. (That's OK. Getting out of the dealership in under 30 minutes is enough of a gift.)