This.
You can have just much fun and speed on an older tidied up bike as you can on a more expensive carbon racer.
I bought an old 2007 Trek here from amongst a pile of abandoned bikes for little money. I put new rims on it and derailleurs, saddle
View attachment 689967 and tyres. Just upgraded to 9 speed. It's a dream to ride although it's covered in scratches.
You'll learn so much about bikes in the process.
If I was good at DIY / fixing bikes and also I had more time then buying an older one sounds like a good idea. However I will need to pay someone to do any repairs / servicing etc and therefore buying one in good condition is ideal for me. But thank you for looking for a bike to suggest to me, I appreciate it. I also appreciate all of the helpful replies from anyone.
I am leaning towards the red Cannondale synapse carbon 105 given the comments on here. Happy to go over my initial budget if the bike is worth it and will be a decent upgrade.