Aton q plus continues the success story of the award winning aton family in gr 0 and scores an excellent 1 6 good at german consumer testing organization stiftung warentest test 062014 the adac rates good the amtc rates good with a historic top grade for its excellent side impact protection when installed with the isofix base in the categories safety and harmful substances it received a very good the interaction of a clever telescopic linear side impact protection l sp sys