Car appreciation... the aesthetics, the engineering, etc

On that note. Does anyone have any suggestions outside the following:

• golf
  
• polo
  
• fabia (probably too small)
  
  

Criteria:

• 5yrs old/not too high mileage
  
• reliable
  
• petrol (sensible engine co2, etc. for parking permit price, tax, etc.)
  
• auto
  
• 4 doors
  
• reasonable boot for an elderly couple
  
• not too big to park in London