Comparing our Sevens to normal cars makes as much sense as comparing us to normal people.
The weekend I got my seven (after waiting 40 years to get one) I drove it 1,000 miles over the three day July 4th weekend in temps over 100 and lost 10 pounds but no sunburn. Heater? A seven doesn't need a heater. Just remove the pedal cover off and let the warm air blowing by the headers blow right in. Put doors on if you must for wind buffeting from the windscreen or take the windscreen off. Cut the windscreen down to 6.5 inches. it cures the wind issues. But leave the top off unless you are driving to slow in the rain.
My Seven is my daily driver 8 months of the year. Living live inside the DC beltway. Most of my miles are on the interstate. So what?
Remember, it's the smiles per mile that count. A Seven is always fun. Even a three block ride to pick up some groceries is fun. My dog loves riding in the Seven. Yes, he is snapped into the four point belts.
As I write, I am looking out at the start of a blizzard wondering if will be able to take my seven for a ride between piles of snow that are taller than my roll cage on Sunday.