This Guy's Speedometer Broke, So He Fixed It With Math

This Reddit user's speedo broke, and the way he got around the problem is hilariously clever.

Reddit user brusifer posted the above picture to r/shitty_car_mods under the title "My speedo is broken, but the tachometer works fine. Lets fix it with vector graphics." Basically, brusifer put up a graph around the still-working tachometer indicating vehicle speed in relation to engine speed in each gear.

The solution is a little complicated, and a little hard to read at a glance, but it's cheap, simple, and it looks awesome.

(Hat tip to TheCroatianGuy!)