Purchase equipment for an I30 cw 90 or 116 Ps

Hello games with the thoughts of buying an I30 CW style but also don’t know exactly how much PS he has solte. Whether diesel or gasoline. Drive about 10tkm – 15tkm a year. Wolte also likes to have a heater and trailer coupling because I have a 1400kg trailer. The first dealer where I was had no intress on his customers. Are the diesel engines noisy?? Where are the differences between the 90hp and the 116? Which car can you recommend me ???