Tuliskeun saterusna pikeun paragraf ieu - Aplikasi saterusna tina drive roda hareup ieu supercharged &lt;a href="Alvis%2012/50"&gt; Alvis 12/50&lt;/a&gt; mobil balap dirancang ku George Thomas Smith-Clarke jeung William M. Dunn tina Alvis Cars of Britania Raya. Ieu kandaraan asup dina 1925 Kop Hill Climb di Princes Risborough di Buckinghamshire tanggal 28 Maret 1925. Harry Arminius Miller ti Menomonie, Wisconsin ngarancang mobil balap roda hareup Miller 122 anu asup ka Indianapolis 500 taun 1925
, nu diayakeun di Indianapolis Motor Speedway dina Saptu, 30 Méi 1925.