Difficult on the strength of those photos. Drivers side rear sill welded up in 2019
Passenger side
Drivers side
Where are the drain points either side of the drivers side rear jacking point. Could be crappy photo/lighting, but I would take a close look at that side, to make sure they haven’t tried to form a lip using a repair patch (which would imply there is effectively no jacking strength, because the actual sill is lying in pieces inside).
Have a good look in the front wheel arch, around the subframe and front antiroll bar mountin g points, of the front chassis rails., particularly the underside. The plastic engine tray might be in the way. Have a screwdriver discretely available for a poke. If the engine tray is missing, I think in general, that’s a bad sign about the car in general.
The B6 is a robust engine;m check oil etc. The radiators can give way around the filler. If the plastic looks a bit brown-green, look for any little yellow plastic cracks. Look for oil leaks around the back onto the rear heater hoses. If you can, pull a plug lead, and look for oil as evidence of camcover gasket failure.
The gearboxes rarely give issue, hence used ones are worth not much more than scrap weight. Check clutch action. If it feels light, spongey, likely the slave cylinder is on the way out, which is a super cheap fix, but could be a useful bargining point. Low fluid in the small clutch reservoir indicates a failing £20 slave cylinder. Full fluid, and a light clutch probably points to imminent master cylinder failure. A chiriping clutch might be a seized release bearing, which is basically a gearbox off job, or it might be lust a dry release fork needing a dab of grease.
Mk2 seats are normally quite worn. This is also a non-import (or not an EU import, as some Irish Mk2s came here); Jap import Mk2s have high back buckets that look like earlier Mk1 seats.
Same brakes as the Mk1, so cheap to fix. Same handbrake issues; check it holds on a hill; if it doesn’t, it might need new rear calipers. 6-7 clicks, not 9-10. After a drive, go around and check, carefully, wheel temperatures, and look for any that are hotter than the rest. Front wheels will be warmer than the rears, but shouldn’t be redders.
Check in the boot, around the battery. These still need the same AGM Panasonic as Mk1s, and if the wrong battery is fitted, there might be corrosion. In some cases, a replacement battery might be fitted without a plastic battery tray, leading to rust. Some of these Mk2s also used to suffer from rusting of the bootlid, from the getgo.
Roof; probably a replacement by now, but as the car has a hardtop, it might be original. Don’t foret to get the hardtop off to inspect the roof. On a base car like this, it will be vinyl. On early cars, Mazda had issues with the bonding between the rear glass and the vinyl. If there are splits in the binding over the doors, the hood might have 12-18 months left in it.
Personally, for £5k, I think this is expensive. If one sill has been welded, I’d expect the other to be not too far behind. A £3-3.5k car.