Ferrari
Car Object
(
    [brand] => Mustang
    [color:protected] => 
    [engine] => 300
    [doors:Car:private] => 
)

488 horsepower
300 horsepower
488 hp
300 cv
Car Object ( [brand] => Ferrari [color:protected] => Red [engine] => 488 [doors:Car:private] => 2 )
Motorcycle Object ( [brand] => Honda [color:protected] => BLACK [engine] => 400 ) 2
Car Object ( [brand] => Mustang [color:protected] => [engine] => 300 [doors:Car:private] => 2 )