No, not without the partner's written approval. That includes stickers, wraps, tints, fitted accessories and any mechanical or electrical changes. Tampering with or removing the tracker is never allowed.
If you change the car without approval
You pay to put it back as it was, plus any damage.
Branding for business
Branding and wraps can be arranged for long-term or fleet bookings. See do you provide branded or wrapped vehicles.