Better than Chimeras. 5 point upgrade that increase BS by one? Check. 20 points for a twinlinked weaponsystem that ignores line of sight? Check.
The hammerhead have equal armor to the LR, an upgrade for 10 points that gives it a 4+ cover save as long as the on firing on the tank does so from longer than 12", and have another upgrade that let it move 12" per turn and still fire one weapon system, plus all defensive weapons, or 6" and fire everything.
The Punisher Gatling Cannon...