Are u familiar with the control systems they are using?........
Personally? Hands on JLR design? No. System level, mostly, from inception to design to analysis to testing to field support. From avionics to very high performance financial systems.
Blackberry's QNX OS has been around for a long time. From Blackberry Passport BB10 smartphones to today's 150 million vehicles running QNX at some level. That includes Audi, BMW, Ford, GM, Honda, Hyundai, Jaguar Land Rover, KIA, Maserati, Mercedes-Benz, Porsche, Toyota, and Volkswagen. Blackberry licenses multiple solutions for a variety of industries, all QNX based. Basically a tailored and optimized Unix OS.
3 Gbits/sec is in the range of 300 MB/s or relatively moderate bandwidth for a vehicle environment. Snapdragon processors are your standard smartphone processing core/s. They are probably declocked (run at lower speeds) to ensure they work as designed at low and high temps. That strategy is very common.
Good to see they realize that the move away from mechanical to IT will require $45 million for validation testing. They are going to need all of it, probably more. Been there, done that. Every manufacturer is jumping through the same hoops.
Dodgey systems can originate from a variety of variables, to include design. You would be surprised at how many hardware design issues (both mechanical and ECU's) are worked around with firmware/software that attempt to mitigate the issue but really just adds another layer of complexity and potential failure. In addition software is added to fix software.
I'm not saying JLR products are any worse than any other manufacturer but I also realize that they all face the same time to market pressures that force management decisions onto engineering teams. From an engineering perspective bad things then happen and failure modes are introduced.
I look forward to seeing the Luxury Defender. As I have already said the powertrain alternatives for the US market are problematic for me. I'm becoming less confident that will be addressed by the new combined Jaguar Land Rover corporate structure.