I think classic convertibles are due for a reappraisal. I concede, fully and freely, that convertibles make the worse track cars — they’re less rigid, usually heavier, and you run into all sorts of clearance issues when you try to fit under a cage. But for those of us who have neither the time nor money to turn hot laps every weekend, there’s something nice about getting all that sun on your face.
Few people are, realistically, going to take a 56-year-old car out to an HPDE. If you do, I respect the hell out of you, but most of us are more likely to show up in a Miata, Civic, or Mini — why do we care about structural rigidity in these classics? What you lose from the roof won’t be noticeable on ancient brakes, oddly-sized tires, and a four-speed gearbox. Enjoy your muscle car on the street with the top down.