When, in short period of time, you see pairs of cars, passing by, matching in color and brand, identical. Not just one pair, few. And not even the common brands, but those that you never happen to see two of the same brand in the same place.
Surely the matrix glitched somewhere there. No other explanation. Nah-ah.
"Err, dude? I think there's a glitch in the matrix. Look at the road - !"