a plane travels at ~800km/h while cruising
a car will travel at approximately ~120km/h on a motorway.
assuming Kishgal's image is an accurate representation of the time it takes for a plane to travel from London to new york, it would take a car (800/120)*7.33 = 49 hours non-stop travelling to reach either destination.
There would need to be fuel stations and floating hotels etc. on the bridge if it were to be built and that is definitely not feasible.
Emergencies could also occur, and with a bridge that long emergencies could be catastrophic.
In conclusion, russia has the correct ideas forgeters.