AC Schnitzer UK
Member
6 tuning products compared back to back by German car magazine Autobild.
A long and technical article for those who like that kind of thing (I do).
http://www.ac-schnitzer.de/fileadmin/mediapool/pdfs/BMW_Autos/Testberichte/Uebersetzungen/Auto_Bild_Sportscars_2013-10_328i_Steuergeraet_englisch.pdf
It's in English by the way...
A long and technical article for those who like that kind of thing (I do).
http://www.ac-schnitzer.de/fileadmin/mediapool/pdfs/BMW_Autos/Testberichte/Uebersetzungen/Auto_Bild_Sportscars_2013-10_328i_Steuergeraet_englisch.pdf
It's in English by the way...