  We study a two-dimensional granular gas of inelastic spheres subject to
multiplicative driving proportional to a power $|v(\vec{x})|^{\delta}$ of the
local particle velocity $v(\vec{x})$. The steady state properties of the model
are examined for different values of $\delta$, and compared with the
homogeneous case $\delta=0$. A driving linearly proportional to $v(\vec{x})$
seems to reproduce some experimental observations which could not be reproduced
by a homogeneous driving. Furthermore, we obtain that the system can be
homogenized even for strong dissipation, if a driving inversely proportional to
