The Mustang is quick in a straight line and enjoyable to drive with either the four-cylinder or the V8 engine. However, if you want more power, acceleration, and performance—get the V8.
The six-speed manual transmission is a joy to shift, and the 10-speed automatic transmission shifts quickly and smoothly even when driven aggressively.
The Mustang's steering and handling are impressive; the steering wheel feels light when you're driving around town, and it gets heavier at high speeds. On base models, the steering is responsive but not sporty. Add any of the high-performance options that increase cornering performance, and you've got a car that's great fun to drive.
The Mustang's seats are well-padded, with good bolsters and support. They're comfortable enough for daily driving and will suit most body types. The suspension is tuned for comfort as well as performance. It soaks up small road imperfections well and adjusts to suit your driving style.
Conclusion
In the muscle-car class, the Mustang strikes a nice balance between performance and comfort. While it's easy to drive quickly, it's also comfortable enough to use as a daily driver. There are a few available upgrades that tweak suspension tuning and add upgraded suspension components for higher performance, but the stock setup can handle curvy roads just fine without sacrificing comfort.