He needs a lawyer big time.
They most likely have plenty of evidence to convict him of DUI even without the chemical test. The refusal (with no prior DUI history) is a civil violation, but as blotto as it sounds, he'll probably get the DUI.
The grand larceny charge is serious and he is at the face of it, guilty. The model of car is unimportant, the threshold for grand larceny in the commonwealth is low enough that any drivable car would qualify. He could get 20 years for this.
Even if he ducks jail time for the felony, he's going to get more than just a simple fine I guarantee. And the implications of a felony conviction beyond the initial punishment are substantial.
I'm not a lawyer, but I did stay in a Holiday Inn Express last night.