Assuming we are in the US with this question. We will also have to assume that the driver is skilled and not a clot with two ham fists.

You probably should consider what a police chase will entail and the tactics they will use to stop you to get to a good answer.

Many police chases are stopped with the pursuit vehicle catches up and can PIT the fleeing car. Also, the police can use stop sticks to destroy/flatten tires of a runner. They have radio and multiple units, they will eventually bring a helicopter in if available.

Given that, you have a few requirements. You could go for straight speed. If you go fast enough, they won’t be able to catch up to PIT you. However, you cannot count on having clear room to run. Traffic, pedestrians, obstacles will be in your path at every point, so your car of choice should be fast enough to get away, but it should not be the only means of escape.

Most police cars in the US are Ford Explorers, some Dodge Chargers (though fewer and fewer), and a scatter of other things. You have to anticipate that they will be able to pursue quickly and sustain damage of their own as they will have things like push bars to absorb some impact. Your defense against a PIT is twofold: first, you do everything in your power to stay away using tactics like brake checking to foil their positioning for a push, constant movement and leverage other cars to act as obstacles. The other portion can be weight and suspension. If a cop were to get behind a Corvette and push, the hard suspension would flex little and the rear would be easily pushed given the relative light weight of the car. If you were in something like a lifted 4x4, now you go too far the other way. A push would upset the tall suspension and high center of gravity and could well end in a rollover even if not a successful PIT. You need the middle ground; something like a non-lifted full sized truck or SUV. Think Silverado or Tahoe. Enough weigh that the cop would have to go really hard at you to get the weight shifted, enough suspension travel that it would lean into a push, but not tip over as easily as something tall.

The big dogs won’t be able to move quite as fast as something zippier, but there is a practical limit to how much speed you really need. Rapid acceleration won’t really solve a lot of problems, your pursuers will eventually catch up once you hit a traffic tangle or obstacle. Being able to go around a corner fast is good, but is it enough to get you away? Being small also means more vulnerable and also a smaller fuel carrying capacity. You don’t want to run out of gas, that would be embarrassing. A full sized truck/suv will also blend in better if you were able to escape the sightline and that really is going to be important.

If you think you’re going to run and run, you’re eventually just going to get more units looking out for you, more pursuers and worst of all, a helicopter that you will not be outrunning. Your objective with the chosen vehicle would be to escape line of sight and then hide in plain sight. Take your truck/suv and park at a Home Depot or Lowes. If you are really wily, find something that’s reasonably similar and swap license plates with it. Go in, buy some lumber, throw it in and leave like you’re in no hurry.

The other option is to find a parking garage, dip in and leave. Assuming the vehicle is not registered to you or traceable back to you, you’re golden. In fact, put a small motorcycle in the back of the truck. Park in garage, leave on motorcycle or scooter at a modest pace.