Project Sampson was designed to create super-soldiers. CRISPR was used to release the limiters on muscles, allowing soldiers to access incredible strength.
Of course, initial testing went poorly. Potential super-soliders threw out their backs, over-strained their bodies, and inflicted many other serious injuries on themselves. As people became more cautious with how to use their strength, and the project leads used gorilla DNA* to improve their bodies ability to handle the strength, things improved.
Once an individual had gotten used to their strength, and their body had adapted to outputting on that level without dying, I imagine these super soldiers would be able to pick up and toss a car rather casually.
Could this work? Could limiters be released on the body this easily? Are there any other downsides to this I haven't considered?
*due to the differences in development this would require, this genetic change was made before birth, as opposed to the other one which would be done on adult humans less likely to accidentally kill themselves.