For people that are knowledgeable about cars

[applejuice]

Hmm... If you want top speed, you need a light car and an engine with high RPMs, if you want manoeuvrability, you will need a car that generates traction at low speeds. For road cars, the weight of the car usually determines that, as well as other factors such as suspension, ride height, etc. A car with a high ride height is not very manoeuvrable, it's very likely to roll over when trying to take a curve at high speeds. A heavy car will generate traction at low speeds and will be able to take curves (within a limit, of course) more easily than a light car. It is a compromise, like the setup of a F1 car, for street circuits like Monaco, the car needs a lot of downforce but that limits the top speed (a "slow" track). Monza is different, the car needs top speed, therefore the car will need to be "discharged" (a "fast" track).