All new private cars in HK should achieve over 45 miles per gallon

because: it would reduce pollution (EPD - Tax Incentives for Environment-friendly Petrol Private Cars (2008) (2008) )
because: it would reduce global warming
- because: cars that are more energy-efficient produce less CO2
  - because: CO2 is a greenhouse gas that contributes to global warming (Greenhouse gas (2008) )
  - because: Burning one gallon of gasoline emits 20 pounds of CO2 (autos.yahoo.com)
because: a wide range of cars are available now that do over 45 mpg
- because: the Subaru Legacy Outback 2.0 TD R does 48.7mpg (www.guardian.co.uk)
- because: the Ford S-Max people carrier does 45.6mpg (www.guardian.co.uk)
- because: the Toyota Prius 1.5 T3 family car does 65.7mpg (www.guardian.co.uk)
- because: the BMW 520d executive car does 55.4mpg (www.guardian.co.uk)
- because: the VW Polo BlueMotion 1.4 TDi does 74.3mpg (www.guardian.co.uk)
because: it would be cheaper
- because: fuel is becoming more expensive (Oil price increases since 2003 (2003) )
but: no-one could own a sports car
- but: they could own an electric sports car - the Tesla Roadster (Wikipedia (2019))
  - but: the Tesla Roadster is not available in HK
but: this proposal will be fought on legal grounds by makers of cars that get less than 45 mpg
- because: the proposal is an unfair restriction on trade between HK and car-making countries
- because: precedent - car makers have fought legal restrictions on car emissions in California (California Air Resources Board (2008) )
but: 45 mpg is not enough
- because: the mpg requirement should rise annually (YtXJhabfi)
  - because: the number of private cars in HK will increase, so to maintain or reduce total CO2 output every car needs to be more efficient
  - because: mpg requirements should increase to force technology to improve (ltYuMJmISoTyXCt)
  - because: technology will improve
- because: all HK private cars should produce zero CO2 emissions
  - because: all private cars in HK could be electric
    - but: not enough commercially available electric cars
    - because: Hong Kong is small enough that the limited range of electric vehicles is not important
    - but: HK's electricity production is not environmentally-friendly
but: it's not fair if only private car owners face this restriction
- but: the policy could apply to other types of vehicles later
but: Car with higher fuel efficiency requires higher technology, this result to higher price of car. So, people forces to have a car which is more expensive.
but: there are only 330,880 private cars in HK, so the policy will make little difference (Wikipedia (2019))
- but: if each car saved 100g of CO2 per km for 50 km a day and 300 days a year it would save 496,320 tonnes of CO2 per year
because: it is better to encourage fuel-efficient cars with tax breaks rather than ban car sales (EPD - Tax Incentives for Environment-friendly Petrol Private Cars (2008) (2008) )
- but: rich people and people who can afford the tax can pay extra and continue to cause pollution and global warming
- but: tax breaks reduce tax revenue
but: no-one could own a luxury car
- but: the BMW 520d is a luxury car (www.guardian.co.uk)

California Air Resources Board. (2008, March 26). In Wikipedia, The Free Encyclopedia. Retrieved 03:33, April 14, 2008, from http://en.wikipedia.org/w/index.php?title=California_Air_Resources_Board&oldid=201022980 (http://en.wikipedia.org/wiki/California_AB_1493#AB_1493).

EPD - Tax Incentives for Environment-friendly Petrol Private Cars (2008). Retrieved March 25, 2008 from Hong Kong Government, Environmental Protection Department Web site: http://www.epd.gov.hk/epd/english/environmentinhk/air/prob_solutions/environment_friendly_private_cars.html (http://www.epd.gov.hk/epd/english/environmentinhk/air/prob_solutions/environment_friendly_private_cars.html)

Greenhouse gas. (2008, March 24). In Wikipedia, The Free Encyclopedia. Retrieved 06:56, March 25, 2008, from http://en.wikipedia.org/w/index.php?title=Greenhouse_gas&oldid=200668260 (http://en.wikipedia.org/wiki/Greenhouse_gas)

Oil price increases since 2003. (2008, March 24). In Wikipedia, The Free Encyclopedia. Retrieved 16:53, March 24, 2008, from http://en.wikipedia.org/w/index.php?title=Oil_price_increases_since_2003&oldid=200553174 (http://en.wikipedia.org/wiki/Oil_price_increases_of_2004-2006).