Well this is how i see it...
"most modern car engines are broken in at the factory, before assembly. Therefore the old tradition of breaking in a new car doesn't apply anymore. Just drive as you normally would drive and treat the car the way you would treat anything else of value."
I only have 400 or so myself but I already went over 4k a few times.. i doubt its gonna hurt my engine... c'mon!!! its a NISSAN;-)
http://wiki.answers.com/Q/How_should...#39;_a_new_car