Originally Posted By: Jarlaxle
But the structure, ride, and handling are weak, the steering is straight out of 1955, and the brakes are a joke.
Not sure exactly what vehicles you're talking about here, but that is certainly not true of most "weekend cruiser" type restoration/resto-mods these days. Maybe if you do a "factory correct" restoration right down to the bias-ply tires you'd be right...
It takes very little to make a 60's car handle and stop about as well as a modern pickup truck or SUV, and while that's not sports-car territory its certainly not "right out of 1955" or "a joke" by any means. For example, 69 Coronet doesn't stop and corner like my 2012 SRT-8, but it is comparable to my wife's Grand Cherokee or my 2008 truck. What's been done to it? Well, it had factory disk brakes but I upgraded with modern pad materials. Mopars always handled OK compared to GMs, but with an added rear stabilizer bar, thicker front stabilizer bar, polygraphite bushings, and Bilstein shocks it easily moves into the 20th century. You can do the same to a Ford or GM, but it takes a little more work- higher rate springs and so forth. My car still has non-rack-and-pinion steering, but its a FirmFeel Inc. rebuild of a factory style steering box that is much closer to R&P steering feel. Since its a convertible, I added front/rear subframe connectors to stiffen the chassis a bit, but chassis flex is still its biggest drawback. Modern tires are essential, in a slightly larger size than OEM (though I refuse to put 20" wheels on a proper muscle car, that just looks stupid).
You can go much further and do a full coil-over, 4-link, and front subframe / rack-and-pinion conversion, bigger-than-stock Wilwood or Brembo front/ rear disk brake kits, etc. and *literally* make one handle like a stock Mustang, Camaro, or Challenger, but for me that actually takes too much character away from a vintage car.