If you buy a Lamborghini, McLaren, Aston.... or any other exotica, you will be advised to run in the engine. I always run them in. Even my tractor needed a run in.
1,000 miles of pottering about, frequent gear changes, under 4,000 rpm (depending on engine) for the first 500 and keep the revs constantly moving, next 500 gradually move the revs up. Don't sit at one speed.... and don't labour the engine.
I doubt you've done any damage at all.
It's interesting that there are two schools of thought on the subject - I recall with one of my sports cars that some new owners followed the 'drive it like you stole it' advice and thrashed their engines from day one. I prefer a little patience and have always been rewarded with quiet, oil tight engines.
