"Shrewd" is not necessarily negative - to call a businessman shrewd is generally a compliment, meaning "taking advantage of hidden opportunities". "Cunning" is more negative, meaning "good at deceiving people" (though in the past it used to be equivalent to "cute"!). "Sly" is about the same as "cunning". You might also consider "scheming" if she has specific intentions, and "devious" if she hides her true intentions.
For your system, the terms you want to use are:
Make: Toyota
Model: Corolla
Year (or "Model Year"): 2015
Plate number: AAA 123
Color: Red
Explaining why you need to use "make" instead of "brand" is harder than I expected, though. The words "make" and "brand" have the same meaning, we just tend to use one more often than the other when talking about certain types of items. There isn't always a good reason for why people use certain words.
When talking about your favorite brand of clothing, peanut butter, software, shampoo, or pretty much anything other than a car, you generally use "brand". For cars, you almost always use "make".
You would never say, "This is my favorite make of clothing".
"This is my favorite clothing-maker" also sounds a little odd.
For cars, people do sometimes say, "Here is a list of top car brands," but that could just as easily be "Here is a list of top automakers".
If asking or describing the manufacturer of a specific car, though, you definitely want make. As the text you posted points out, it just sounds odd to ask someone, "What brand is your car?" even though they would still understand you and answer the question.
Best Answer
Either term is acceptable.
I generally call it by its formal name, asterisk. But 'star character' is becoming common; we speak of starring a passage when we put an asterisk in the margin; and in fact the name asterisk is, etymologically, little star, from Greek via Latin.