Lavazza EspressGo

Fresh espresso coffee in your car, easy to use (once you know how), uses the Lavazza capsules so is tidy, easy to clean

Impossible to use without reading instructions and understanding them, you'll need to carry water (and milk) too

The controls can be fiddly to start with and the poor instructions don't make your life much easier, but once you crack it the Espressgo is logical to use and makes a cracking cup of espresso.