Those look nice! How long does it take you to make one of those? I really like the Chi-chan one. 
I would shamelessly drive it everywhere.
Also, who else are you planning to do? Aside from Shiho, of course, as I see you already mentioned doing one of her.
Thank you
It took me about one day to complete Chi-chan's livery, the reason is, I was thinking about "how should I make it?" while making the livery at the same time.
If you wanna drive it on the street, there are a lot of people who drive this kind of cars in Japan, and most of those are truly high performance street racers!! (RX-7, Silvia S-15, even some European cars like Mercedes-Benz are used as base car.)
The main reason that I picked this Porsche is it has the most basic template, that way I'll be able to spend the least time, producing best liveries. Other cars have more complicate settings, I was about to make her livery on Mazda/Lola B08/80 prototype, but that one has no enough place for the character image.
Here's what Mazda/Lola B08/80 looks like, it may be one badass-looking race car, but for itasha-themed livery? Just NO.
Miki's livery only took me about two hours to complete, since all the source images are on my HDD, all I had to do is re-size them and place on the template, then set up the alpha channel.
I was thinking about a different color placement, but ended up with no idea. So the base paint has almost no difference than Chi-chan's
Aside from, Shiho? Hmm... Shizuka is also on my working table, and I'll definitely make one for Princess Haruka
Takane is also one of the chosen, and then... Makoto, Kotoha, Mirai, Futami Twins, Karen and Yukiho.
We'll see if I can take all the girls from Million Live, but currently I only have a list as above. All I need to do is looking up the Wiki for ML newcomers' representative color.
By the way, instead of Petit! Idolm@ster characters, I used PuyoM@S characters on the rear bumper.
