Positive steps to removing vehicle emissions

I realise yesterday I criticised the Greens for offering a non-viable solution to vehicle emissions by playing around with FBT and didn't offer any better alternatives. So, here's what I came up with:

The base model of the low emission, 1.5 litre Toyota Prius has a RRP of $43,650, about the same price as the base model 6 cylinder, 4 litre Ford Falcon ($43,290) or 3.6 litre Holden Commodore ($44,590).

Because a large component of the FBT charge on company vehicles is not the fuel cost but the depreciation, that makes the low emission cars too expensive to provide to staff instead of a much cheaper standard 2 litre car.

If the Depreciation and FBT rules were changed for low emission cars, then cars like the Toyota Prius would become more attractive to businesses that provide cars for employee work.

While the change would initially only effect cars, low emission hybrid commercial vehicles aren't too far off according to several articles I found on reliable newssites on the web.

So, instead of putting forward an unworkable idea (that suits the Green extremist world view that sees only bicycles and trains as transport options), here's an idea that can satisfy the needs of companies to provide vehicles to staff for work related activities and helping reducing emissions from motor vehicles.