Hi Pandapop and welcome.
I have to disagree with the others, with a 999cc engine you can have fun and increase the performance without upping the insurance. Mine is still a group 1 and the Co-op know about it's mods.
It will do 0-60 in about 11 secs and a top speed of about 130. I've had 120 out of it. It has a rev counter, the speedo won't show those speeds!
There are several sites to visit to look at modded Pandas.
www.thomassoft.com/pandapower
A site a previous owner of my Panda set up. He did alot of the styling work on the car and it is detailed here.
He sold it on to an engineering student who put in a Piper cam, allowing 6500 revs, electric windows, remote central locking and a Fila interior from a Lancia Y10, and various other little bits to increase it's power. Probably up to around the mid to high 50's bhp....Cheap plug...and it's for sale! see the classifieds!
www.teampandamonium.com
An extreme racing Panda
Both have links to other sites.
I think Pandaboys front splitter is from a Yugo 45 sport.
A Citroen AX spoiler fits on the back, alloys you can usually pick up on eBay or on here for a reasonable price, but insurance companys often up your premium by £60 for them! Thats why mine is with the Co-op.
Good luck with it, the main thing is to have fun and stuff your mates with their Fiestas and corsas!