we just met a former bus driver from Peru who now lives here in the States. He was telling us he used to drive luxury tour buses about 10 years ago in Peru and that on the highway he used to drive 70-75mph and in the city of Lima he'd drive up to 50mph, he told us the limit on some roads in Lima was as high as 60-65mph, but he only drove 50mph in the city, I think we're missing something here. (I'm guessing this 60-65mph limit is expressways going thru the city)

I would assume the tour bus drivers who drive 'rich' gringoes are slower more careful drivers than the drivers who drive the locals