That just smacks of dumb contracting.
Contracts are written by both parties. Don't like the terms? Try asking for something different and see who will sign.
option for renewal
Yes, but who has the option? Most often the dealership, to protect what is to them a large investment. Manufacturers won't be affected by a few dealers coming and going to the same extent.
So, if you want to invest a few million into a dealership, will you sign an agreement that might get you cut off at the end of a term? Interesting note: In the past, dealership franchise contracts prohibited corporate ownership of multiple dealerships. manufacturers didn't want large ownership structures to build up which could challenge them in contract negotiations (divide and conquer). But this was challenged and thrown out by the courts (in the '60s or '70s, I believe).