Will I lose my company car or other perks just because the business was sold?

It depends on what kind of perk it is and how it's documented, since not every workplace benefit is treated the same way legally. Some perks, like a company car, a phone allowance, or a parking spot, are often provided informally, tied to a specific role rather than being a core, protected term of your employment, which gives a new owner more room to change or discontinue them as part of restructuring, especially where the perk was discretionary in the first place.

Other perks can be treated as a genuine, integral part of your compensation package, particularly if they were specifically negotiated, written into your employment terms, or provided consistently enough over a long period that they've become an expected part of what you're actually paid to do the job. The more a perk functions like real compensation rather than a discretionary bonus, the harder it is for a new owner to simply take it away without it counting as a meaningful change to your job.

If a valuable perk disappears after the sale, look at how it was actually documented, or how consistently it was provided, before assuming either that you have no claim or that nothing has changed — the specifics of your situation genuinely matter here.