LIMITS
Government incentives that reduced road tax or give special grants should be limited to small 1200cc cars only not huge SUV's .
Another condition should be that it must be possible to run on electric only with engine off totally inside cities unlike most hybrids..
Cars with air conditioners are not acceptable for grants as they waste fuel and are a luxury item.
There are probably more reasons why grants should not be granted which need discussion.
CliveS