Nothing personal Ryan but....
The motor vehicle liberated mankind.
That's probably one of the most ridiculous statements I have ever read here at RD, I do hope you meant that in jest.
In fact it is quite the opposite and you have in many ways enslaved yourselves to corporate ideology. You are at the whim of organisations like OPEC and to governments who seek to take a proportionally high amount of your income for the privilege of driving.
The mass adoption of the car as a means of personal transport has directly led to the creation of out-of-town shopping areas. As such it has reduced your choice as a consumer in that the high street has become less populated with independent traders and diminished competition in key retail sectors.
Ecologically it has contributed, in no small way, to the impending natural catastrophe that is climate change which, if left unchecked, will remove the habitat of several million people. Newer technologies will only slow this down and not stop it, hydrogen cell technology requires vast amounts of electricity to produce the component element and producing electricity is a massive environmental change inducer. Bio fuels and the fields in which they are grown come at the cost of local farmers and the real need to grow food crops rather than cash crops. The huge global corporations pouring money into this are exploiting their power and removing local populations' ability to feed themselves for a quick "green" buck.
To say it has liberated mankind is simply not true, a vast proportion (if not a majority) of mankind lives perfectly liberated (liberation being a very relative term across different societies) without the motor vehicle and I doubt the man/woman stuck in traffic for hours on the M25 feels "liberated". For sure it has offered a degree of freedom of choice, the choice not to live near work, the choice not to live near anything, the choice to spend an hour travelling rather than a day but at a cost and not just a monetary one. Your view is both naive and very narrow minded and I actually weep for the future when I find such views common place.
I do not own a car, I have no need to do so. I work locally, my children go to school locally and I have a large shopping complex within 5 mins walk of my home. As a consequence my tax burden is much lower, my impact on the world is less than the average 2 car family and strangely enough I feel more liberated by my non-reliance on motor vehicles (especially when the snow comes). I can still travel where I please although it may take me longer to get there but that is just a matter of time and preparation not a shackle to my independence. And despite all of this I still subsidise the car owners of this town I live in and even the country as a whole. My council tax and income tax helps to pay for the car parks, traffic subsystems, safety applications and services which regulate, maintain and protect the lives of the car using public.
I'm very definitely not anti-car, my favourite sport is (predictably) motor racing. I most certainly enjoy travelling in (most) motor vehicles and I am not naive enough to think that they are not important to civilisation as a whole but liberate us they did not. If there are any technologies that liberated mankind it was far more important advances like scientific experimentation, the printing press, the evolution of philosophy and the internet that have liberated mankind although I struggle to think what they liberated us from, oh yes ignorance, that must be it.