[19bonestock88]

So I did a big road trip with a revised version of the diffuser. Getting onto the highway last week the front mount failed and it fell down at speed, so I had to repair it and I extended it to the axle to prevent air getting under it. Results are astounding. I cruise at 60mph, now between 10.2 and 11.4% throttle and showing between 20 snd 23% load. Instant mileage is between ~54mpg (11.4% throttle) and ~61mpg (10.2% throttle). I also removed the spare and equipment and cut out some excess metal from the trunk lid, bringing weight to an estimated 2585lb

Making progress indeed!

EDIT: I did reattach the outer plastic and my spoiler after the cutting