it all depends on the spec AL, and how many options are fitted, but it doesn't really matter so long as the driver is confident and loads it correctly.
now back to the original question, ive never used a c max for towing but i have extensively used both a s max and a new style galaxy and both made superb tow cars. i had absolutely no problems with either and would definitely have another one once i don't need a transit any more. i would be very tempted to go for the 2.0 tdci though the 1.8 is not as refined or efficient and in my honest opinion 6 gears are essential despite some saying they never use 6th as they seem to think 5th is more economical, if you drive all day at below 55 then 5th is probably better but stick to 60 or above on the continent where allowed and 6th is far better.