LIKE the C200K, the C180 is available with a six-speed manual transmission as a delete option to the standard adaptive five-speed 'Tipshift' automatic. Both units deliver smooth, seamless shifting, with relatively low gearing allowing the small engine to do its best work. The sequential self-shifter allows drivers to downchange by pushing the gearlever to the left and to upchange by pushing right. Unlike other semi-automatic transmissions, it won't upshift on its own - even at redline - but it does have the ability to downchange automatically, even in 'manual' mode.