what is wheatleys drift on the port hills in charistchurch new zealand
who was this person ??? and what did he doo ??? Please give me the
history .

Hello.

According to the web page cited below, Wheatley's drift is the
downhill side of the road toward Godley Head.  The web page indicates
that Christchurch city employees would load their trucks with rocks
from the nearby quarry ande then put the trucks in neutral and race
downhill.  A competition was held, and the winner was an employee
named Wheatley.

See:

"Wheatley?s Drift s 43deg 35.354? e 172deg 46.563?
 Christchurch City council employees when collecting rock from the
nearby quarry would load up the truck and turn right onto the road
toward Godley head.
 With the truck in neutral the only rule, they would race downhill to
see who got the best distance, the winner of this competition was an
employee named wheatley.
 Hence the sign on the downhill side of the road. Just short of Godley Head."

source: 
Sumner to Ferrymead: Walks, Parks, Public Facilities, History.
http://www.sumnertoferrymead.co.nz/walksparks.htm

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search strategy:
"wheatley's drift"

I hope this helps.