I would think twice about having another 2.2 tbh. I had one in my Linea Rossa edition Mk4 Astra Coupe, and while these engines have a huge following (
http://www.Z22SE.co.uk is a valuable resource) they seem incredibly underpowered considering their displacement (148bhp in stock form iirc).
There is an issue with earlier engines in the form of a restricted oil feed to the timing chain that has seen a massive number of lumps go pop. It was actually a factory recall, and I think I'm right in saying that a replacement oil feed pipe comes as part of each timing chain kit. Check to see when the chain was last changed. Later engines shouldn't suffer from this problem. The affected engine number range is well documented online. Check it against any potential purchase.
I found the 2.2 to be quite thirsty (the Astra's replacement, a 250bhp turbocharged 2.3-litre Saab Aero estate is way more fuel efficient), but will prove to be reliable if well maintained. Given the options available to you, I would opt for a Zafira GSi or simillar (an MPV with a turbocharged two-litre Z20LET in place). Don't forget, the VXR edition of the Zafira is/was the fastest people carrier in the world - essentially, an Astra VXR on stilts!
Then again, if you're after a forced induction solution and don't mind the Z22SE, you'll be pleased to know that a bolt-on supercharger kit can be found in the form of the 2.4-litre Chevrolet Cobalt Eaton M62 unit from the USA. The engines share the same characteristics and it's a pretty straightforward upgrade. I've written about a number of these conversions for Total Vauxhall magazine.
Of course, loads of people rave about the Z22SE, a fact confirmed by its huge following and a dedicated forum of chuffed Astra, Vectra, VX220, Signum and Zafira owners. That said, you can't help but feel that the Z20LET offers a bit more poke and a lot more fun
)
