5. Scion xD RS (Release Series) Concepts
Scion frequently unveiled radical xD Release Series concepts, including turbocharged variants and collaborations with tuners. While the production xD was practical, these special edition concepts hinted at a sporty, enthusiast-driven potential for the hatchback that never saw daylight. For instance, the xD RS 1.0 featured Hot Lava exterior paint, a DAMD body kit, and TRD lowering springs, with only 2,000 units produced. (theautochannel.com)