Cart
The cart is a staple of an adventurers life, transporting them to and from their various destinations. It is an important part of an adventurers life and should be treated as such.
Comfort
None 0 GP
I think I saw a rusty nail.
Basic 100 GP
Oh look, seat and a cover. You can now use the cart to sleep in.
Modest 250 GP
Cushions and better seating. Character that have suffered a level of exhaustion, can ride in the cart and won't slow the journey down.
Comfortable 1000 GP
You have outfitted the cart with everything you need to get yourself ready. A short rest in the cart only takes 30 minutes and can be taken while travelling. After taking a short rest using this feature, you must take a long rest to use it again.
Lavish 5000 GP
You are able to use the cart to take a long rest while travelling. After taking a long rest using this feature, you must take a downtime turn at your base to use it again.
Decorations
None
It is a plain wooden cart.
Basic 10 GP
The cart has been painted a colour of your choice
Simple Decorations 20 GP
Higher quality paintwork, detailed to your specification, typically centered around a name, motto, or crest.
Metalwork + Carving 200 GP
Paterns can be carved, custom metalwork can be lathed. The fittings are now steel, brass, or whatever you desire (within reason).
Gilded 5000 GP
Is having Gold on a cart gauche? Yes. Does it look good? Who cares. Everyone knows you're fancy now.
Defenses
None 0 GP
The cart has no defenses and can easily be destroyed. The Cart has 15 HP
Basic 100 GP
The cart has some basic reinforcement at its most critical junctures. The cart has 30 HP.
Modest 250 GP
The cart is well reinforced and gains resistance to piercing, slashing, and bludgeoning attacks. The cart has 60 HP.
Armoured 1000 GP
The cart has been armoured properly and made defensible. Creatures within the cart gain +2 to AC. The cart has 80 HP.
Weaponised 5000 GP
The cart has been modified to give those inside excellent visibility without sacrificing defensibility. Attackers gain +2 to ranged attack rolls from within the cart. The cart has 100 HP.
Mobility
None
You'll get there when you get there. Any form of difficult terrain will require a detour.
Basic 100 GP
Difficult terrain will require a combined survival and animal handling check to pass and will slow your speed by 50% for the duration.
Rugged 250 GP
Difficult terrain no longer requires a skill check, but will still slow the party down by 50%
Racing Cart 100 GP
The cart is built for speed and the average moving speed is increased by 25%.
Horseless 5000 GP
Powered by magic, the cart no longer requires horses to be pulled and is not slowed by difficult terrain.
Storage
None
You're just dumping stuff in the back of the cart.
Basic 100 GP
A simple container will keep rations dry and stop things from falling about the cart.
Modest 250 GP
A much better storage solution, you can bring weapons along with you in the cart and swap out items easily whenever you visit the cart. It's easy to bring some larger tools with you on the journey.
Secret Compartment 1000 GP
Two small secret compartments for items such as documents and keys and one larger space, which can uncomfortably fit a medium sized person (no larger than any of the players).
Interdimensional Storage 5000 GP
An interdimensional storage space can hold up to 1000 pounds and 512 cubic feet of space (8 ft cubed). items can be retrieved by speaking their name to the interdimensional space. If the space is within 100 ft with no significant hurdles, it flies into the speaker's hand.