Bike Transport options?

[lukeiam]

Hi folks! This is my first post here and thanks for even clicking.

I'm a long-time Toyota owner -- had a 2WD Tacoma for 15 years...I just bought an '09 Yaris and while I'm super excited to have the car, I somewhat discounted one overlooked issue: bike transport. I'm a serious mountain biker and I want to get a decent rack system that won't kill the mileage (one of the main reasons I got the car!). It seems like anything on the roof will do that, so I'm left with considering a hitch or rear rack strap-on system.

I'm seeing some DIY hitch options that would definitely open options (I'm obviously not towing anything heavy here, just attaching a bike rack). Anyone have some suggestions? Thanks so much!