It is 235 km's from Tbilisi to Kutaisi, the 2nd biggest city of the country of Georgia. Normally it takes 3 hours to reach Kutaisi via the newly constructed superb highways.
The prices below are given for a car, not per person.
1-3 persons - 100 EUROs by a sedan
4-6 persons - 160 EUROs by a minivan