Comment by pouetpouet

I checked: Paris-Bordeaux toll is 55€ (US$63 with tax) for 563km (350 miles) of highway, 583km total. Add 34L (9 US gal., 39MPG!) of fuel @1.5€/L (US$6.6 per gallon) that is 51€ of fuel. So toll+fuel total, that's at least 106€ ($122) one way. Now you have to take into account the car rent/lease/depreciation+maintenance. You're likely better off with the train (2 hours and 8 minutes) unless you carpool.