Overflight Labs Prototype 102

The Prototype 102 is an optimisation and improvement over the Prototype 101, featuring a different flight profile, a fairing to emulate carrying payloads, and much more power for reaching the Mün.
While it is known to have stability issues, it has not yet had a serious, staked mission to flight test fully for its intended purpose.
Characteristics
Delta-V (at Kerbin sea level)
3,957 m/s
Stages
4
Personnel capacity
1
Engines
7
Payload carrying capability
Nose-cone fairing
Developed from
Prototype 101