Mine, now, has covered just over 750 miles. Driven "normally/ sensibly".
A recent 200 miles seaside trip, on motorway/ main roads. At all available speed limits. Occasional overtaking, up to 5,500 rpm.... Gave 55.5 mpg.
The car rolled much easier/ freely, when back home. The creep speed, along my drive has increased.
This one journey, shows there is more running in/ freeing up to come.
David.