Which ever car requires the pedal to be pushed further to find the bite point could have more wear. As the clutch is operated by hydraulics like the brakes, any air in the system needs to be bled out, I've never done it with a clutch system before. The problem with air in the system is it compresses, when you push the pedal that pushes a master cylinder which forces hydraulic fluid (brake/clutch fluid) down the pipes to force the slave cylinder to operate the clutch. But if theres air than that will compress thus absorbing some of the force between the master cylinder and slave cylinder meaning the pedal will need pushing further. It could be awkward to bleed as you'll need someone to push the pedal in and out when you say and you'll need to open and close bleed nipple at the right times and keep topping up the reservoir. If you've never done it before then you should get someone who has as it could be very easy to get more air into the system.
Also remember that this is just a possibility, I'm not saying that this is the cause of the issue.