Casserly (on Total Access) described Newton's contract structure more like Kaepernick's, actually year to year. I haven't read the terms, just passing it along. A graphic stated closer to $31 million guaranteed, not $61 million. He was already set to get about $15 milion this year, so by doubling that (in the form of a roster bonus this year - not sure how that changes the cap hit this year and going forward?), they lock him up for the next five years on their terms, IF THEY WANT TO. Casserly called it very team-friendly and year to year. Not that they would do it, but it sounds like if he regressed terribly this year, next year, they could pull the plug at any year of the next five in the contract, and not be on the hook for the remaining years.
* If Casserly is right, it certainly wouldn't be the first time that the guaranteed money reported on the first day ends up being different than what was initially thought. Pretty sure this was the case with Kaepernick.