Your car can do it for sure. I've pulled a trailer with a 150kg motorbike in it with my wheezy NA Laser tx3. It is also a 1.6 litre engine, producing what felt a lot like 50kw at the front wheels. Hahaha! Fuel economy gets really bad if you try to do 100kp/h, but sticking at about 90kp/h won't do anything bad.