The road is sealed asphalt for the entire 200 kilometres and no four-wheel drive is needed. That said, "sealed" does not mean "motorway". Average speed over the whole trip works out at around 35–40 km/h, because the route passes directly through dozens of villages where you slow to a crawl behind becak, goats and school traffic.
The first hour out of Makassar is the least pleasant — urban sprawl, trucks, and roadworks that appear and disappear between seasons. From Jeneponto onward the drive opens up: salt flats, horses grazing on scrub, then the long coastal run through Bantaeng where the sea sits right beside the tarmac. Bantaeng, roughly the halfway point at three hours in, is the natural place to stop for a drink and a stretch.
After Bulukumba you turn towards the peninsula and the character changes again. The last 40 kilometres wind through cassava farms and up onto white limestone, past the open-air boatyards at Tana Beru and Kampongpasar where phinisi hulls stand on the sand in various stages of construction. This final stretch is narrower and has some tight bends, so it is worth timing your departure to drive it in daylight — the views are the payoff for the day, and the road is much easier to read before dusk.
During the rainy season, roughly November to March, expect surface water and occasional short delays where drainage has washed material onto the road. Journey times stretch by around thirty minutes rather than hours. Landslides are not a feature of this route.