I've had a variety of tents over the years.
My favourite boot of the car tent was my trusty Vango Force 10 Mk4 (3 man), lasted over 30 years before the cotton fly disintegrated. We even used it on our honeymoon! Plenty of space for two, and bombproof in the way that only traditional Force 10's are.The poles have been re-purposed as awning poles for our large family tent.
Another long lived tent is our Wild Country Trisar, which served us well on a trip across Wales, on wild camps in the Highlands and Pyrenees, and more recently with my youngest son at the head of Hayeswater. Still serviceable after 30 years or so, although the fly had to be re-taped and needs re-proofing, and the alloy poles are not as strong as modern equivalents. Quite roomy for two inside, but has a small porch and is heavy at 3.3kg. Still of use, occasionally. Not a tent that I would replace like for like, though.
For family camping we have a Coleman Mosedale 5(man)- the "Mosedale Whale", and I dislike it intensely. Fibreglass poles (I've already had to replace one section), plastic windows, wobbles like a jelly in strong winds, 17kg of misery! But it was cheap, has loads of space and it does make a good summer midge free base camp in sheltered places like Glen Nevis, nice to be able to retreat from the little [censored]****s.
My most recent purchase is a Lightwave T10 Trek one man tunnel tent, my wild camping tent. Got it cheap as it is a discontinued model, and it is proving to be a real toughie, with DAC poles and 40d silnylon. The modern equivalent is the T10 Trail. I really like it.