KBB.com Brand Image Awards. Only 14,368 Miles! Delivers 28 Highway MPG and 21 City MPG! This Porsche 718 Cayman boasts a Intercooled Turbo Premium Unleaded H-4 2.0 L/121 engine powering it's sleek transmission. Window Grid Diversity Antenna, Wheels: 18 Cayman -inc: set of... via CarSoup