Towne Car is an executive sedan service provided by the Greater Houston Transportation Company. It maintains a fleet of suburbans and H3 HUMMER vehicles. Greater Houston Transportation Company offers computerized dispatch taxicab services. The company provides itemized monthly billing solutions on corporate and professional charge taxicab and courier accounts. Its cabs are wheelchair accessible and equipped with global positioning systems and digital cameras. The company also offers gift cards of several denominations. It participates in various community reach activities.