On the Shanghai to Nanning route, high-speed G- and D-series trains operate alongside classic overnight Z/T services. The quickest option is a G-series high-speed train running via the Shanghai–Kunming high-speed corridor toward Changsha/Guiyang and then the Guiyang–Nanning high-speed line. Fuxing CR400 sets work the 300–350 km/h (186–217 mph) sections between Shanghai Hongqiao and Changsha/Guiyang, while the Guiyang–Nanning segment is capped at 250 km/h (155 mph). End-to-end times for the fastest through G service or a 1‑change itinerary typically range from about 10 to 12 hours, with stops commonly including Hangzhou East, Nanchang West, Changsha South, Guiyang North, and arrival at Nanning East. D-series high-speed trains (CRH1/CRH2) use 200–250 km/h (124–155 mph) stretches and generally take around 12 to 14 hours. These offer 2nd and 1st Class seating; some night D services include sleeper accommodation. Conventional Z/T trains use legacy lines at about 120–160 km/h (75–99 mph), taking roughly 20 to 26 hours. Seating and berths vary by service: Hard/Soft Seat and Hard/Soft Sleeper are standard. On G-series high-speed trains, expect Second, First, and Business Class, with power outlets and trolley catering, while D-series trains typically provide First/Second Class seating and onboard refreshments.