I had started programming in java 2 years back. Seniors in our project at that time had advised me to append \'obj\' to the name of the object which is being created.
class name in small letters is Sun/Oracle standard.
when you are working for a company,
depending upon project naming conventions it may vary.
Car car=new Car(); //good to follow
if It is Singleton pattern,you may give a name like below
private static final Car singletonCar=new Car();