These gens of Audi A series is too similar to other A series. Such as A3, A7 etc.  
But fortunately it says A4 quattro.  
(Also, don’t get me wrong, my parents never owned Audi car before)

@RushCars24  
Yeah CX-5 is great and all for the urban country roads, but I think the futuristic sleek SUV look just don’t mix pretty well with Starlight’s personalities and traits. In my opinion, Audi cars suit her best, since they have loads of power, control, high-tech stuff, intimidating facia, and whatnots while still manages to stay elegant, just like Starlight. Probably an Audi Q5 will suit her best as a daily driver in Ponyville.

Her Sophisticated Choice of a Ride for the Vorsprung durch Technik!
 
In my universe called Sci-Twiliverse, Starlight Glimmer drives a 2017 Mazda CX-5 Grand Touring, painted in Soul Red Crystal. Okay, okay, it’s a boring pick however, but there’s a reason why, that because all thanks to those memes depicting Starlight Glimmer being always shared with the German Nazi leader, Adolf Hilter, which the meme makers imagines her as a German Nazi leader like Hilter to run her equality more stronger. That’s why I have to make her stay away from a bunch of German cars, such as Mercedes-Benz, BMW, Audi, Porsche and Volkswagen, if I let her bought one model from one of those German manufacturers, then those could turn her equality more stronger than ever, instead of reforming as Twilight Sparkle’s pupil (I don’t want to see Evil Glim Glam again).
 
As a mid-size crossover SUV itself, I can also see why I’ve picked a second generation CX-5 for Starlight, even thought it’s almost attractive (Well, not quite), the front fascia is somewhat suits her better taste, while its sensitive handling might be enough for her, I’m thinking she doesn’t want something hardcore right now. Of course, we know that she lives in Our Town, her former village with rough tracks right before moving to Twilight’s castle, which I can see why she wants something that could conquer anything in style, whatever in the city, the highway or the backroads (Oh my, almost like she’s in Russia right now), and fit all of her leisure needs, especially for kites (She can fit many kites in the trunk as much as she like). Also, when Starlight Glimmer’s human form was introduced in Equestria Girls via Mirror Magic, her design looks beautiful, and it won’t be that beautiful if we didn’t pick Soul Red Crystal for that car.
 
Oh, in Sci-Twiliverse, I made her that she is not much known about the automotive world at all, so she’s not really a petrolhead in my universe.
 
Overall, I like your preference here, I thought a fifth generation Audi A4 [B9] would fit for her as well, it also looks attractive and elegant, and also matches her characteristics, maybe if those Nazi Stalin Glimmer memes have dried down and Starlight goes back to her normal self, I’ll may switch up her interest of German cars after that. I’m also thought that the 2017 Alfa Romeo Giulia may also fit Starlight, sure if we can see her driving an Italian sports sedan.
 
If you’re not a fond of her with a CX-5, then I don’t mind that anyway, maybe you can give an example of a better crossover SUV than the CX-5, whatever be German or not, feel free.

@TF2Heavy  
Someone have to change models in game and record gameplay from it.

Cool!!! Now I want to see a video of the same art with the anthro Starlight Glimmer and her driving on the road!

@jetwolf  
Yup!

Audi A4 quatrro!