Greenpeace activists protest against climate-damaging cars with an over-dimensional so-called monster truck in front of an entrance to the IAA in Frankfurt, which is about to start the same day. Behind the monster truck on one-and-a-half-meter wheels, a 1,400 cubic meter sized balloon with the inscription "CO2", is attached to the vehicle. On a banner the climate activists are calling for ""Traffic Change Without Climate Killers"". The balloon would hold about ten tons of climate-damaging CO2. An amount that is emitted by some types of SUVs presented at the IAA by BMW and Mercedes over about 10,000 kilometers.