when u got your car, read the first few page of the owners manual, it mention how to run the engine break in 

VEHICLE BREAK-IN PROCESS

No special break-in period is needed. By
following a few simple precautions for the
first 1,000 km (600 miles) you may add to
the performance, economy and life of
your vehicle.
• Do not race the engine.
• While driving, keep your engine speed
(rpm, or revolutions per minute)
between 2,000 rpm and 4,000 rpm.
• Do not maintain a single speed for long
periods of time, either fast or slow.
Varying engine speed is needed to
properly break-in the engine.
• Avoid hard stops, except in emergencies,
to allow the brakes to seat properly.
• Don't let the engine idle longer than 3
minutes at one time.
• Don't tow a trailer during the first 2,000
km (1,200 miles) of operation.

guys pls assist me..im planning to get one K5 soon..hows the fuel consumption and the maintenance..meanwhile the most important thing to know hows the handling...what does you all did for the sound proof cause one of my fren complaining he felt outside noise entering inside when he drives at 100km/h and above...

i have always wondered about this - why cant new cars idle for more than 3 min ? what is the cause of damage ?