We'll be driving the Sprite from Houston to Bulverde, Texas next week. Some time between the 13th and 15th, weather permitting.
Plotted route is 204 miles (328km) avoiding incompatible roads and passing through some scenic waypoints like the Shiner Beer brewery in Shiner, TX. The Sprite can get up to about 60mph (95 kph) so it'll hopefully just be slow and steady. With an early morning departure we should be able to arrive by late afternoon if everything goes smoothly, which seems manageable.
We've enlisted a co-driver to assist, so it will be the three of us rotating driving responsibilities with the Cayenne full of tools and provisions following as a support vehicle. I'm still feeling like we have about an 80% chance of success. 100% chance of this being a great story in the end, though.