Hi, I'm looking to upgrade my old HD video cameras with a new device of sorts, used primarily to capture footage of cars. I already have use of 2 x GoPro4s which I will continue to use for interior footage with an external microphone (internal GoPro mic simply does not capture sound accurately IMO and with a lot of scratching noises). Therefore decent sound quality is a must, and must be able to capture loud audio. I'd prefer not to have to invest in another external mic. 4K isn't a must, but good sharp footage, good colours, capture in all sort of exterior lighting conditions, with decent image stabilisation and good zoom/focus abilities. Again as used for car footage the ability to keep up with fast moving objects is a must also. Budget is around £500-600. Maybe more if worth it. My mind is telling me a good camcorder is a better way to go than the DSLR, but I'd appreciate any input. Many thanks!