Question: What race in china allows speeds up to 260 km/h on 6.2km of streets?

Related documents: [0]  [DOC] The Guia Race of Macau is an international touring car race, and currently a round of the TCR International Series. It is held on the temporary 6.2km Guia Circuit on the streets of Macau, the Special Administrative Region of the People's Republic of China as part of the Macau Grand Prix weekend. Before 2005 when the World Touring Car Championship began, the Guia race had been run annually as a one-off international touring car race. [END] 
[1]  [DOC] The Guia Circuit, or Circuito da Guia, is a street circuit located at the southeast region of the Macau Peninsula in Macau, China. It is the venue of the prestigious Macau Grand Prix and Guia Race of Macau. The circuit consists of long straights and tight corners, and features the characteristics of a typical street circuit - narrow, bumpy and limited overtaking opportunities. However, there are two special features that can rarely be found in other street circuits - variation in altitude (over 30m between highest and lowest point of the circuit) and an ultra long main straight that allows top speed of 260 km/h on F3 cars. As a result, the circuit is recognised as one of the most challenging circuits in the world in terms of both driving and tuning, as cars have to maintain competitive speed to overcome hill-climbing, twisty corners and long straights in a single lap. [END]  
Answer: Guia Race of Macau
Guia Race of Macau