open-top 
(also open-topped)
adjective
(Of a vehicle) not having a roof or having a folding or detachable roof: an open-top MG...
- That was a five-minute solo drive round a model town with road layouts driving a sporty open-top car, larger vehicles or even a London bus.
- The ducks are second world war US-built amphibious vehicles and make a fun change from the traditional open-top bus tour.
- At 11: 00 a.m. they drove out in an open-top vehicle and reviewed the group, some way away from where I was standing.
- pouk
- poulaine
- poulard
- poularde
- poulard wheat
- pouldron
- poule
- poule au pot
- poule au riz
- Poulenc, Francis
- colour party
- colour pencil
- colour phase
- colourphobia
- colour picture
- colour piece
- colour plate
- colourpoint
- colour printer
- colour printing
- colour question
- colour reversal
- colour-ring
- colour-ringed
- colour-ringing