Brawn GP undecided yet to use KERS

Brawn GP will have to pay more to McLaren Mercedes if it wants to use the team's Kinetic Energy Recovery System later in the season.

The former Honda team is currently not running the new energy-reuse technology, having focused over the winter on surviving and accommodating the 2009 car for a Mercedes engine.

A side-effect of the dash to accommodate a different engine is that the BGP 001 package is currently running heavier than Brawn would like.

"That makes it quite difficult to install KERS," team boss Ross Brawn told reporters at Sepang on Friday.

The Briton admitted that his current commercial arrangement with McLaren and Mercedes is for engines only.

"We have had some tentative discussions about KERS but it is a little bit early for us to engage properly on that," Brawn added.