Errr, 1000km. 1000 miles and people will say you're trolling. 

I think at traffic light can do already. Or from a slow speed accelerate the car by stepping on it. I sometimes see those Hilux pickups on the highway and know when they step on the gas to overtake / accelerate by the black smoke the exhaust pipes gives out.

Wah, the things he does, is it possible ah in Malaysia? Next thing you know BMW gets bad publicity when a driver suffocates trying to better the 1000 mile record.

1000km per tank is more doable in Malaysian traffic and climate conditions. 

I will just say again that diesel engine on a small car like Fiesta does not make sense. You go through all the unnecessary vibration and noise for a small car is just not worth it. A diesel engine on a bigger vehicle makes more sense.

It does makes sense. The consumption is lower and diesel is around RM 0.22 cheaper here. Though taxes are higher...

I was not making reference to Malaysian weather being hotter and therefore less efficient.

I was more concern about how would a driver tahan not using air conditioning with windows closed in hot humid climate like Malaysia just to perform the feat. Also, where would you be able to maintain a journey with 60 to 70 mph all the way? Our highways are not that long. Unless consider journey from JB all the way to Bangkok but that would be crazy if not impossible to maintain that kind of average speed.