"So now there are 3 sealing points that each have the potential to leak? This is not 'smart' design. The 'easy to drink out of spout' looks more uncomfortable than a normal centralized spout. 1"

"Don't go bungee jumping without a bungee, don't go parachuting without a parachute, don't drive a car without a seatbelt, don't go cycling without a helmet. It's pretty simple.I've had a number of crashes while commuting in London, all with a helmet on. Would I want to do any of those without a helmet? Not a chance. Each time my helmet has taken damage that would have otherwise been my head. Any of those could have minor, or major effect to my health. I wouldn't want to take the risk of finding out.If wearing a helmet is the thing stopping someone from cycling, there is a bigger issue at hand. Wearing a helmet is not legally required at the moment, are all of those people cycling right now? Cycle lanes and better road traffic options are all good and in the long run better to prevent accidents involving vehicles, but they are out of the control of the individual cyclist. Wearing a helmet is an instant action that can help prevent injuries and is within the cyclist control to action. It also helps with rider caused issues, like accidentally falling off or crashing into other riders.1"

"I agree, this a good example of well-executed design for context. The door is unlocked and accessible when needed and automatically locked when under heavy acceleration. The user will most likely never know about this feature, but they would definitely know if it wasn't there. Great design is often invisible. "

"The only pro I can see for this is removing the weight of the energy source (batteries or fuel tanks). The cons vastly outweigh this with the biggest issue being that the vehicle is on a collision course with the 'airport' building only to land on the roof. If anything went wrong this would mean that all the passengers in the terminal are in direct line of the vehicle. "