Help racecar game problem

Question

im really not that good at java and this may just be a simple structure problem or there may be no way to do what i want but i thought id just make sure before i proceed and do it another less organised way
im making a top down veiw car racing game where hte user can select different cars. i would like each car type to have a seperate class that just simply defines the varibles for that car (ie mass, length inertia etc). then a generic racingcar class that can access them.
howver the problem im having is that since each cartype class has a different name so i cant extend or implement them in my racecar class (maybe theres a way to dynamically set what a class extends/implements?)
and i cant have a varible pointing to it because id have to define one for each cartype
if you have any insight or an obvious answer im just not seeing oculd you help me please

Answer 1

abstract class BaseCar
   void update()
      //some logic code, including a call to getMaxSpeed()
   //definition is required in the subclass
   abstract float getMaxSpeed()
class SuperCoolFastCar extends BaseCar
   float getMaxSpeed()
      return 10000.0;
}and then in your main class
BaseCar [] theCars = new BaseCar[numCars]
theCars[0] = new SuperCoolFastCar();
theCars[1] = new SlowButGrippyCar();
//etc etc