I was pleasantly surprised by the roads in Malaysia. We were doing the equivalent of 80MPH on the main N-S road between Kuala Lumpur and Penang and dudes would blow past us in a Toyota Hi-Ace minivan doing 100MPH. Some of the best roads I've ever driven on, even better than the roads in Texas. Heading up into the mountains to see the tea plantations, even the secondary roads were at least two lanes and well marked, but well maintained, even if it was impossible to pass slow-moving trucks.