Why do some teams have it and others not.... curz?

May be...

Some teams ave it, some dont. some teams win and then theres
Barca loner

curs stands for
control ur rubbish stella intake.

kurs is by no means............................... (feel in the banks)

bankkurs

Its Kers, and because some don't feel its worth it. You'll see more teams using it in future though, its still a new thing.

KERS (kinetic energy recovery system) is an option this seaon that is apprarently becoming mandatory next season.
There is a very mixed view over the usefulness of the system which stores enegry dissipated through braking & saves it in a sort of battery that can be used for specified times each lap to give extra bhp.
The downside is the added weight of the battery in the cars with KERS & the some fluctuations in reliability.

In some races the teams with KERS have decided to turn it off when issues have arisen & these cars are then still carrying the extra weight without the extra power bonus.

So far KERS has proven unpredictable in the wet & seems to have greatest advantage on circuits with long straights to get the extra power boost. Monaco is not the friendliest circuit to the KERS cars.

im not sure on spelling but kers,kurz,curs,curz etc etc.... i know what it does but why do some teams have it and others not? also i might be wrong but im sure that some teams have it at 1 grand prix then not at the next... but like i said i might of made that last bit up?

It's KERS and some teams don't want the extra weight on their car. Like with Kubica, who is quite heavy, it would slow him down as the combined weight of driver plus KERS would be a disadvantage.how to produce cheap