I'm not sure whether or not you're expecting to us to take you seriously, but, on the off chance that you are...Does anyone know how many cars are sold each year?
Does anyone know how many cheap kids MTBs and adults BSOs are sold each year?
There are more child's bicycles in this country than motorcars. Then add on the BSOs, low end MTBs, midrange MTBs, good MTBs, high spec MTBs. Then add on all the Hybrids, roadies fixies etc.
A fiver says more bikes leave Halfords each week than cars leave auto dealers.
A bike may cause 1/4 CO2 to make than a Mondeo, but 4 times as many bikes are made than cars.
Look at the Far East, China and India. Count the cars and then try to count the bikes. Good luck.
a) your numbers are wrong
b) if a car is substituted for a bike the carbon output increases