20. Mr Takagi presented document TF-BTA-03-05. He explained that indeed the test results change when the impact angle is changed and NTSEL feels that this needs to be considered. Mr Knotz wondered whether there are vehicle data underlying to this since of course vehicle design measures may have a significant influence. He recommended using standard rigs for the testing that are available. Mr Bilkhu added that also to his experiences at least for the EEVC LFI the stiffness of the structure tested has a significant influence on the reliability of the test results and decreases with increasing stiffness.