Can any 5 speed manual be towed?

Like always- this is such a great forum. My car is a 1999- I just thought a hardtop convertible would be really a great vehicle for towing. We went down to the keys and rented a convertible and the smile on my wife's face was the reason I bought the car. I agree that we really don't want to drive separately because we love being together. I appreciate all the response. I will talk to transmission guys. My car (the R170 body which is the SLK230 and SLK350) was listed in the 2002 Motorhome book of cars that can be towed (well I said that and I just looked through every book and now can't find it). But there is question whether the same transmission was used in 2002 and 1999. Again, thank you everyone.