定义一个汽车类，属性可以有颜色，品牌，车牌号，价格，并实例化 两个对象，给属性赋值，并输入属性值。

以下是定义一个汽车类并实例化两个对象的Python代码示例：

class Car:
    def __init__(self, color, brand, license_plate, price):
        self.color = color
        self.brand = brand
        self.license_plate = license_plate
        self.price = price
car1 = Car("red", "Toyota", "A12345", 100000)
car2 = Car("blue", "Honda", "B67890", 80000)

print("Car 1:")
print("Color:", car1.color)
print("Brand:", car1.brand)
print("License Plate:", car1.license_plate)
print("Price:", car1.price)

print("Car 2:")
print("Color:", car2.color)
print("Brand:", car2.brand)
print("License Plate:", car2.license_plate)
print("Price:", car2.price)

输出结果为：

Car 1:
Color: red
Brand: Toyota
License Plate: A12345
Price: 100000
Car 2:
Color: blue
Brand: Honda
License Plate: B67890
Price: 80000