
a SUV [?]

My sentence is correct.
Where letters are pronounced one at a time use the consonant/vowel rule: for example you would write “an SUV” because SUV is pronounced one letter at a time and the sound of S is “ess.” On the other hand you would write “a JCB” because JCB is pronounced one letter at a time and the sound of J is “jay.”
Source: https://www.spellcheckonline.com/a-vs-an/

Could you please translate my sentence into Portuguese?

Yes, of course. Thanks.
BTW, I don't know what SUV means. :-)