Lexus IS 250 or 350?
I am trying to pick out my parents and I are wondering whether it would be worth it to upgrade to the 350 or is not that big of a difference from the 250?

A baby Lexus big on premium comfort.

Lexus sets a high bar for quality. Step inside the IS and you'll get a heavy whiff of the larger ES and GS sedans. The materials are excellent, from the soft pleated leather to the soft-touch rubber dash and silver-painted center stack. The instrument panel's gauges take the look of old wristwatches and modernize them with sharp lighting. The switchgear is just as impressive in the IS as in an $80,000 Lexus LS. You feel rewarded in this Lexus like you won't in a BMW, Mercedes, or Audi.
The exterior styling from some angles is too Toyota, but the slanted headlights, sloping hood, short tail, and large alloy wheels suggest this is something more special. There's a graceful curve to the roof, but it's not too aggressive. This is still a practical and conservative car.


Large, comfortable front seats and rear seats have good lateral support. The back seat is on the small side with less legroom than you might like, and those rear doors don't offer the best ingress and egress given how the fender intrudes into the space. The trunk space measures 13 cubic feet.
For the driver, the controls and seating arrangement put everything within easy reach. Visibility is good. The small screen in the instrument cluster is a bit hard to read.


The 2007 IS has dual front airbags, dual front knee airbags, front side airbags, and front and rear head curtain airbags standard, along with ABS, traction, and stability control. A Pre-Collision Assist system uses a radar sensor to detect an impending crash. If one is unavoidable, the seatbelt pre-tensioners activate and the brakes are primed to transmit full braking force the moment the driver steps on the pedal. This is optional, along with a reversing camera that comes only with the navigation system.
In the Insurance Institute for Highway Safety (IIHS) crash tests for the front moderate overlap and side, it scored the best Good rating. The National Highway Traffic Safety Administration (NHTSA) rated the 2007 Lexus IS at four out of five stars for the driver and passenger in a frontal crash, five stars for the driver in a side crash, and four stars for the rear passenger in a side crash.
Update: The 2007 Lexus IS came with defective Takata airbags that can explode during a crash and kill the front occupants, so be sure to verify the vehicle has received the recommended recall repairs.

I am trying to pick out my parents and I are wondering whether it would be worth it to upgrade to the 350 or is not that big of a difference from the 250?
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Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Dual front knee airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Front side curtain airbags
Audio System
Antenna Type: element · 6 disc CD/DVD in-dash CD · MP3 player: CD MP3 Playback · Premium Brand: Mark Levinson · AM/FM radio · XM satellite radio · 1 subwoofer · Surround audio: 7.1 · Total Number of Speakers: 13 · 300 watts
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 11.7 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 11.5 · Rear brake width: 0.39 · Rear brakes: disc
Comfort Features
Armrests: rear center folding with storage and pass-thru · Center console trim: simulated alloy · Dash trim: alloy · Door trim: simulated alloy · Floor Mat Material: carpet · Floor Mats: front · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cruise control: adaptive · Cupholders: rear · Dimming rearview mirror: auto-dimming · Memorized settings: steering wheel · Multi-function remote: trunk release · One-touch windows: 4 · Power outlet(s): 12V front · Power steering: speed-proportional · Reading lights: front · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: phone · Storage: front seatback · Sunshade: power rear window · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 10
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 3
Instrumentation
Warnings and reminders: low fuel level
Lights
Exterior entry lights: security approach lamps · Headlights: self-leveling
Mirrors
Exterior mirrors: electrochromatic
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 10
Rear Seats
Type: bench
Roof
Moonroof: power glass
Safety
Camera system: rearview
Seatbelts
Rear center seatbelt: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front and rear
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Heated: front seats · Passenger seat power adjustments: reclining · Rear headrests: adjustable · Upholstery: leather · Ventilated: front
Spare Tire
Mount Location: inside · Size: temporary
Spare Wheel
Rim Type: steel
Stability and Traction
Accident Avoidence Systems: pre-collision safety system
Suspension
Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): rear
Telematics
Navigation system: DVD navigation system w/voice activation · Phone wireless data link: Bluetooth
Tires
Type: summer performance
Tires and Rims
Wheels: alloy
Windows
Front wipers: intermittent · Power windows: remote operation
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Dual front knee airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: element · 6 disc CD/DVD in-dash CD · MP3 player: CD MP3 Playback · Premium Brand: Mark Levinson · AM/FM radio · XM satellite radio · 1 subwoofer · Surround audio: 7.1 · Total Number of Speakers: 13 · 300 watts
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 11.7 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 11.5 · Rear brake width: 0.39 · Rear brakes: disc
Comfort Features
Armrests: rear center folding with storage and pass-thru · Center console trim: simulated alloy · Dash trim: alloy · Floor Mat Material: carpet · Floor Mats: front and rear · Shift knob trim: alloy · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cruise control: adaptive · Cupholders: front · Dimming rearview mirror: auto-dimming · Memorized settings: 3 driver · Multi-function remote: proximity entry system · One-touch windows: 4 · Power outlet(s): 12V front · Power steering: speed-proportional · Reading lights: front · Steering wheel: tilt and telescopic · Steering wheel mounted controls: paddle shifter · Storage: door pockets · Sunshade: power rear window · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 10
Drivetrain
4WD Type: full time · Limited slip differential: center
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 3
Instrumentation
Warnings and reminders: low fuel level
Lights
Exterior entry lights: security approach lamps · Headlights: self-leveling
Mirrors
Exterior mirrors: heated driver mirror
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 10
Rear Seats
Type: bench
Roof
Moonroof: one-touch open/close
Safety
Camera system: rearview
Seatbelts
Rear center seatbelt: 3-point · Seatbelt force limiters: front and rear · Seatbelt pretensioners: front
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Passenger seat power adjustments: reclining · Rear headrests: adjustable · Upholstery: leather
Spare Tire
Mount Location: inside · Size: temporary
Spare Wheel
Rim Type: steel
Stability and Traction
Accident Avoidence Systems: pre-collision safety system
Suspension
Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): front
Telematics
Navigation system: DVD navigation system w/voice activation · Phone wireless data link: Bluetooth
Tires
Type: all season
Tires and Rims
Wheels: alloy
Windows
Front wipers: rain sensing · Power windows: remote operation
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Dual front knee airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Front side curtain airbags
Audio System
Antenna Type: mast · 6 disc in-dash CD · MP3 player: CD MP3 Playback · Premium Brand: Mark Levinson · AM/FM radio · 1 subwoofer · Surround audio: 7.1 · Total Number of Speakers: 14 · 194 watts
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 13.2 · Front brake width: 1.2 · Front brakes: ventilated disc · Rear brake diameter: 12.2 · Rear brake width: 0.71 · Rear brakes: ventilated disc
Comfort Features
Armrests: rear center folding with storage and pass-thru · Center console trim: simulated alloy · Dash trim: alloy · Door trim: simulated alloy · Floor Mat Material: carpet · Floor Mats: front and rear · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cruise control: adaptive · Cupholders: rear · Dimming rearview mirror: auto-dimming · Memorized settings: steering wheel · Multi-function remote: trunk release · One-touch windows: 4 · Power outlet(s): 12V front · Power steering: speed-proportional · Reading lights: rear · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: audio · Storage: door pockets · Sunshade: power rear window · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 10
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 3
Instrumentation
Warnings and reminders: low fuel level
Lights
Exterior entry lights: security approach lamps · Headlights: Xenon
Mirrors
Exterior mirrors: electrochromatic
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 10
Rear Seats
Type: bench
Roof
Moonroof: power glass
Safety
Camera system: rearview
Seatbelts
Rear center seatbelt: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Heated: front seats · Passenger seat power adjustments: reclining · Rear headrests: adjustable · Upholstery: leather · Ventilated: front
Spare Tire
Mount Location: inside · Size: temporary
Spare Wheel
Rim Type: steel
Stability and Traction
Accident Avoidence Systems: pre-collision safety system
Suspension
Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): rear
Telematics
Navigation system: DVD navigation system w/voice activation · Phone wireless data link: Bluetooth
Tires
Type: all season
Tires and Rims
Wheels: alloy
Windows
Front wipers: intermittent · Power windows: remote operation