Not a bad idea...

A few countries do this and I think it is very fair...Your fine is based on your income...Make it hurt...A $350.00 ticket may hurt us a little but is mere chump change for some guy/gal making $1,000,000.00 + per year...Think about it...

https://autos.yahoo.com/blogs/motor...for-going-14mph-over-the-limit-225247649.html

The record holder was a diplomat from the republic of Guinea-Bissau caught driving a Ferrari Testarossa at 137 kmh (85 mph) through a village in Eastern Switzerland. The penalty was calculated as a percentage of the motorist’s wealth – assessed to be 24 million Swiss francs by the court – and the seriousness of the offense, his record and… the speeding ticket totalled nearly US$290,000 – a King's ransom for most, but a trifle in comparison to Perridon's fine – and he wasn't driving the car. In this case the perpetrator claimed diplomatic immunity for his offense, it only succeeded in saving him from being named, not from being fined.

The previous world record ticket was set in 2002, held by Jussi Salonoja, the then 27-year-old heir to a northern European meatpacking empire. In Finland, the fines for speeding offenses are levied against the annual income of the driver. Salonoja earned US$11.5 million in 2002, which resulted in a fine of around US$200,000.