Custom Works Zon’s Yuichi Yoshizawa and Yoshikazu Ueda built this ground-up custom in their Shiga, Japan shop as a commission project from BMW to utilize their prototype giant boxer engine purported to be 1,800 cc (They have not released any info at time of posting.) Handbuilt Show. Austin, Texas USA. Friday, April 12, 2019. Photography ©2019 Michael Lichter.