I originally booked a Honda City, but ended up with a Nissan Sunny. Thankfully, it was a relatively new car, about two years old with over 20,000 kilometers on it. The engine was a 1.0T three-cylinder with a turbocharger, providing a smooth ride with low RPMs and minimal noise. Previously, I rented a naturally aspirated Yaris in Phuket, which struggled on hills and was very noisy. The downside of the Sunny is the lack of a rearview camera and parking sensors, which is a bit stressful in Bangkok's heavy traffic.