Ford KA reverse gear problem?

This only happens in reverse, but when I try to select reverse it won't always let me select the gear. Also when I lift the clutch up a very horrible grinding sound appears when you don't put it into the gear properly. When this happens I always try to put it in properly but it still happens sometimes.

It is a 56 plate KA

Is it the gearbox, is it the clutch I don't know, but it is very annoying and inconvenient for me and other users of the road.

How many miles will 20 litres of petrol get me?

I have a Ford KA 1.2 don't know the MPG at all. But I know I have half a tank of petrol which is 20 Litres and I need to do about a 90 Mile trip, wondering if'll get me there.

Added (1). I'm going to be driving on A Roads, instead of the motorway.

Do you think the old ford ka is more popular than the new one?

I thought the old KAs where hardly seen now days and I thought the new one would be more popular and more seen on the road the funny thing is I see more of the old KAs than the new ones my dad doesn't like the KAs he calls them the old grannies or a hairdresser car I'm getting a Suzuki swift 5 door in red

Will my Ford KA (55 plate) CD player play MP3's?

I have a 55 plate Ford KA Collection model and was wondering whether my CD player would play mp3's? I have the standard CD player/Radio that was originally put in the car it has never been changed.

Why are my headlights not working?

My headlights are not working on my ford KA (04 plate). I have main beam, side lights and indicators. I have changed the fuses and indicator stalk but still have the same problem. I'm 99.9% certain it is not both bulbs and to be honest I'm struggling to get my hands in to get them out.