Shudder at initial acceleration

Hi all!

I have looked through here and haven't quite found a post that is like my issue so I'm hoping someone has some insight. My prius has developed this shudder when I press on the gas pedal. It was worse when I first started the vehicle after it had sat for about 3 hours. The gas engine had kicked on and I put the car in reverse, when I pressed the gas there was a strong shudder. I waited a second or so and tried reversing again, no shudder. When I came to my first stop and the engine cut off, the car shook again pretty aggressively. After this, it seemed to only have a less intense shudder when I first hit the gas pedal. The best way I can describe the feeling is similar to a torque converter failing on a gas vehicle, but it occurs when I first accelerate vs. at ~ 45mph.

I of course ran to google and all I can find is spark plug and/or ignition coils potentially being the issue. I have spark plugs on the way already and were going to change them this weekend, but wondering if it could potentially be something else more serious. Thanks!

 

Thanks! Fuel injectors was my next guess but I wanted to try the spark plugs first since they are on the way. The car has 179K miles and fairly new to me so I am not sure they were ever changed. There's no info on the carfax about it, so I'm just assuming not.

 

There is no noise from what I can hear. No dash lights and I ran my OBD2 scanner and no codes!

Sorry I should've included miles - 179K! Engine mounts looked good to me, but I'm no expert lol. I can have someone a little more knowledgeable check on that for me though.