How much are 65 US lbs in kilogrammes? And aren't there differences if the trailer has an own brake or not? Without an extra trailer-brake (it works, when you are braking), in Germany the maximum weight is -for all cars, I guess- 450 kg. With brakes, it depends on the car.

I wouldn't wonder, if the Datsun is allowed to tow more than a same aged and same-sized VW Rabbit or so.
BWD-cars and cars with very conventional suspension often are allowed to tow more than same-sized FWD-cars. The total weight of the car is not the main thing.