How to pass generic object as parameter in c#?

Question

I wan to call a method from two diffrent method, but the object which I want to pass is different in both the methods. lets assume an example below.

 

Public string GetCarDetails(Car carObj)

{

 string price=GetCarPrice(carObj);

return price; 

} 

 

Public string GetBikePrice(Bike bikeObj)

{

VechileDetails obj = new VechileDetails()

string price=obj.GetBikePrice(bikeObj); 

return  price;

}

 

I want to create GetBikePrice method in VechileDetails class which can accept both the object car and bike.

I hope you guys got my problem.

Thanks.